Chapter 3 Review

Choose the expression that contains only like terms.

• 15k + 2k - 4k + 2

• 16h - 7h + 3g - 9h

• 5r - 3r + 6r - r

Simplify:

2x + x?

• 2x

• 5x

• 3x

Simplify:

3x - 5x

• 2x

• 8x

• -2x

How many terms are in the following expression?

3 - 2x + 14r - 7 + 5x

• 7

• 3

• 5

Simplify the expression:

7v + 2 + 12 + 2v

• 23

• 23v

• 9v + 14

Find the sum:

(3x + 15) + (4x + 13)

• 7x + 28

• 35x

• 7x - 2

Find the sum:

(7k + 9) + (4k - 3)

• 3k + 6

• 11k + 6

• -11k + 6

Find the difference:

(7a + 4) - (9a + 2)

• -2a + 6

• 16a + 6

• -2a + 2

Find the sum:

  $\left(8x+9\right)+\left(-6x-2\right)$  

•  $-14x+7$  

•  $2x+7$  

•  $2x-11$  

Find the sum:

 $\left(5x+4\right)+\left(-8x-2\right)$  

•  $-12x+6$  

•  $-12x+2$  

•  $-3x+2$