Question

Combining like terms

Simplify each expression

1.) -4x - 10x

2.) -r - 10r

3.) -2x + 11 + 6x

4.) 11r - 12r

5.) -v + 12v

6.) -8x - 11x

7.) 4p + 2p

8.) 5n + 11n

9.) n + 4 - 9 - 5n

10.) 12r + 5 + 3r - 5

11.) -5 + 9n + 6

Answer 1

Combine like terms to simplify an expression. For example, all terms with the variable x can be combined into one term. All constants can also be combined.

1) -4x - 10x = -14x

2) -r - 10r = -11r

3) -2x + 11 +6x = 4x + 11

4) 11r - 12r = -r

5) -v + 12v = 11v

6) -8x - 11x = -19x

7) 4p + 2p = 6p

8) 5n + 11n = 16n

9) n + 4 - 9 - 5n = -4n - 5

10) 12r + 5 + 3r - 5 = 15r (the 5 and -5 cancel each other out)

11) -5 + 9n + 6 = 9n + 1