Intermediate Algebra
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Linear Equations

  1. ?    Solve for x
    100x=500; 20x-30x=-100
    Video-5:30
  2. ?    Solve for x
    (4/7)x+2=50
    Video-5:06
  3. ?    Solve for x
    -(7/6)x-3/4=-1/2 ; 0.2x-1.67=2.40
    Video-5:52
  4. ?    Solve for x
    13x+9x=11x+5 ; 7y+18y+9y+6=6+9y+19
    Video-7:26
  5. ?    Solve for x
    7(15x+12)=4 ; 9x+19x-15=14x
    Video-6:51
  6. ?    Solve for x
    20(8x+5)+14(x+16)=0
    Video-8:22
  7. ?    Solve for x
    6(15x+18)-20=19x-13(9x-20)+8
    Video-9:15
Quiz | Answer | Replay


Linear Inequalities

  1. ?    Find the solution set.
    x-7 > 1 ; y+1/2 > 1/2
    Video-6:28
  2. ?    Find the solution set.
    2x ≥ 8 ; -2x ≥ 8
    Video-5:53
  3. ?    Find the solution set.
    7x-15 > 12x+4
    Video-6:03
  4. ?    Find the solution set.
    (1/5)x-1/3 ≥ -3/4
    Video-5:46
  5. ?    Find the solution set.
    20(18x+5) ≤ 5 ; 7(-8x+1)-10x+1 ≤ 0
    Video-9:18
  6. ?    Find the solution set.
    -1 ≤ 2x+1 < 10
    Video-5:47
  7. ?    Find the solution set.
    11 < 66x-2514 < 13
    Video-8:11
  8. ?    Find the solution set.
    0 < -x/2+1 ≤ 8
    Video-6:27
  9. ?    Find the solution set.
    x ≤ 10 and x > 0
    Video-4:40
  10. ?    Find the solution set.
    x ≤ 10 or x > 0 ; x ≥ 10 and x < 0
    Video-8:44
  11. ?    Find the solution set.
    3x-1 < 2 and 5x+1 > 9
    Video-5:01
  12. ?    Find the solution set.
    -4x < 7 and 2x > 3x-1
    Video-5:59
  13. ?    Find the solution set.
    x-1 ≤ 4 or 1-x < 4 ; 2x+10 < 10 and -2x+14 < 14
    Video-9:03
Quiz | Answer | Replay


Literal Equations

  1. ?    Solve for R , D=RT, D=40, T=20 ; Solve for W, P=2L+2W, P=100, L=20
    Video-8:08
  2. ?    Solve for W and L given P=2W+2L where L is three times the width.
    Video-5:14
  3. ?    Solve for W given V=LWH; Solve for F given C=(5/9)(F-32)
    Video-7:27
  4. ?    Solve for P given I=Prt where I=$1000, r=15%, and t=12 months
    Video-4:54
  5. ?    Solve for r, given C=2πr2 ; Solve for h, given A=(1/2)bh ; Solve for h, given V=(1/3)πr2h ; Solve for m, given E=mc2
    Video-7:44
  6. ?    Solve for y, given x+2y-7=0 ; Solve for y, given S=2x2+4xy; Solve for b1, given A=(1/2)h(b1+b2) ; Solve for r, given B=P+Prt; Solve for x1, given m(x-x1)=y-y1
    Video-9:25
Quiz | Answer | Replay


Applications I

  1. ?    Convert 64 degrees fahrenheit to celsius.
    Video-3:01
  2. ?    Aaron drove his freightliner a distance of 1112 miles in 20 hours and 45 minutes. What was his average speed?
    Video-4:40
  3. ?    John deposited $3000 in a savings account that was paying 1% simple interest. The amount of interest paid out was $2000. How long did John leave the money in his savings account?
    Video-3:44
  4. ?    The perimeter of Michael's garden is 495 meters. If the width is half the length, what are the dimensions of the garden?
    Video-6:09
  5. ?    The volume of a box is 800 meters cube. The length is four times the width and the height is 2 meters. What are the dimensions of the box?
    Video-5:40
  6. ?    The area of a right triangle is 72 meters squared. If the height is 1/3 the base, what is the height and base of the right triangle?
    Video-7:34
  7. ?    One more than a number is 10. What is that number?
    Five less than a number is 20. What is that number?
    The sum of a number and 7 is 21. What is that number?
    A number decreased by 9 is 99. What is that number?
    Video-3:08
  8. ?    The product of a number and 10 is 100. What is that number?
    Twice a number is 50. What is that number?
    The quotient of a number and six is 100. What is that number?
    Video-3:27
  9. ?    Five more than six times a number is 41. What is that number?
    Three times a certain number decreased by one-third is 2. What is that number?
    The sum of two numbers is 14. The larger number is one more than 3 times the smaller number. What are the numbers?
    Video-6:38
  10. ?    Find three consecutive integers whose sum is 78.
    Find three consecutive even integers whose sum is 72.
    Video-7:55
  11. ?    Find three integers such that the second is twice the first and the third integer is six more than the second. The sum is 256.
    Video-5:04
  12. ?    The perimeter of a rectangle is 150 m. The length is 25 m more than twice the width. What are the dimensions of the rectangle?
    Video-9:59
  13. ?    A farmer needs a rectangular garden divided into three equal plots. He has 170 yards of fencing. The length of each plot is 5 yards more than the width. What are the dimensions of the garden?
    Video-6:38
  14. ?    What should the selling price of a house be in order to have $150,000 left after paying the real estate agent 5% of the selling price?
    Video-4:43
  15. ?    Jane's clothing is having a big sale this weekend. She is going to mark up each shirt 20% above its cost. She will advertise a sale of 15% off the listed price. If the sale price is $54, what was the original price of the item?
    Video-9:52
  16. ?    Chance leaves the truckstop at noon on a bicycle traveling west at a rate of 15 mph. At 12:30pm Aaron leaves the same truckstop in a car traveling in the same direction at a rate of 60 mph. How many hours will it take Aaron to catch Chance?
    Video-8:39
  17. ?    Mike leaves Fort Smith at 1:00pm in a car traveling at a constant rate of 60 mph. John leaves Little Rock heading to Fort Smith at 2:00 pm in a car traveling at a constant rate of 70 mph. At what time will they pass each other?
    Video-9:27
Quiz | Answer | Replay


Absolute Value Equations

  1. ?    Find the solution(s), if they exist, to the equation.
    |x|=3
    |x|=-5
    |-x|=15
    |2y|=10
    |-4x|=-48
    2|x|=34
    Video-7:29
  2. ?    Find the solution(s), if they exist, to the equation.
    4|x|=-18
    |x|=0
    |2y|=0
    -4|-x|=-36
    Video-6:25
  3. ?    Find the solution(s), if they exist, to the equation.
    |x|+5=10
    |x-7|=20
    2|y-1|=10
    Video-5:08
  4. ?    Find the solution(s), if they exist, to the equation.
    |2-3y|=12
    10-|2x+5|=50
    20-|2x+5|=10
    Video-7:31
  5. ?    Find the solution(s), if they exist, to the equation.
    5|3x-7|-8=50
    Video-5:07
  6. ?    Find the solution(s), if they exist, to the equation.
    |5-2x|=|2x+7|
    |3-4x|=|9+4x|
    Video-5:54

Absolute Value Inequalities

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Adding and Subtracting Polynomials

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Multiplication of Polynomials

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    Video-13:01

Factoring Polynomials

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Factoring Binomials

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    Video-4:36

Factoring Trinomials

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    Video-7:27
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    Video-11:30

Solving Quadratic Equations

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    Video-6:42

Applications II

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    Video-8:40

Rational Expressions

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    Video-9:14
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    Video-9:01

Reducing Rational Expressions

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    Video-7:15

x, ÷ Rational Expressions

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    Video-10:37

+,- Rational Expressions

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    Video-7:46
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    Video-9:56

Complex Fractions

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    Video-6:20
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    Video-9:28

Division of Polynomials

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    Video-12:21

Synthetic Division

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    Video-11:32

Solving Rational Equations

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    Video-11:20
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    Video-6:38
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    Video-5:46
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    Video-13:09

Applications III

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    Video-9:19
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    Video-15:25

Rational Exponents

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    Video-9:55
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    Video-9:22

Radicals

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    Video-8:45
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    Video-6:17

Simplifying Radical Expressions

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    Video-6:42
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    Video-9:45
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    Video-7:10

+, -, x Radical Expressions

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    Video-8:53

Solving Radical Equations

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    Video-10:20

Test Questions


Answers