Education.com
Try
Brainzy
Try
Plus

Algebra Review Practice Problems

By
Updated on Oct 27, 2011

To review these concepts, go to Algebra Review Help.

Algebra Review Practice Problems

Directions: Use scratch paper to solve the following problem.

Practice

  1. If 13x – 28 = 22 – 12x, what is the value of x?
  2. If , what is the value of y?
  3. If 8a + 16b = 32, what does a equal in terms of b?

Answers

  1. To solve for x:
      13x – 28 = 22 – 12x
      13x – 28 + 12x = 22 – 12x + 12x
      25x – 28 = 22
      25x – 28 + 28 = 22 + 28
      25x = 50
      x = 2
  2. To solve for y:
      4y = 36y – 21
      –32y = –21
  3. To solve for a in terms of b:
      8a + 16b = 32
      8a + 16b – 16b = 32 – 16b
      8a = 32 – 16b
      a = 4 – 2b

 

Add your own comment