Expressions and Equations

6r - 9r + r if r = 3

• -9

• -6

• 9

• 6

8k + k² - 6k when k = 5

• 20

• 25

• 30

• 35

Combine like terms -7r + 4a - 12 + 2r² - 3a + a³

• -7r + a - 12 + 2r² + a³

• -5r² + 2a³ - 12

• a³ + 2r² + a - 7r - 12

Combine like terms 16 + 5z - 3z + 4x - 7 - 10x

• -6x + 2z - 9

• -6x + 2z + 9

• 9 - 2z + 6x

Solve m - 32 = 73

• m = 105

• m = 41

• m = 57

• m = 19

Solve 64 = 16y

• y = 3

• y = 4

• y = 5

• y = 6

Solve s/12 = 15

• s = 90

• s = 180

• s = 270

• s = 360

Simplify and combine like terms 3(-8 -2v) + 10

• v = 14 - 6v

• v = 34 - 5v

• v = 11 -5v +10

• v = -6v - 14

Simplify and combine like terms -3p + 5(p + 9) - (6p - 18)

• -4p + 63

• 10p + 27

• 15p + 9 - 9p

Simplify and combine like terms -7(3x - 6)

• -21x - 42

• 10x + 13

• -21x + 42

• -27x + 48