One- step solving for a Variable (Unit 7)

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

144=12z

• z=20
• z=11
• z=12

What equation is modeled here?

• x - 6 = 13
• x + 6 = 12
• x + 6 = 13
• x6 = 13

Write the equation for the model.

• 10=2-x
• -10=-x+2
• -10=x-2
• -10=x+2

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

y - 14 = 66

• 80
• 52
• 79
• Answer Not Given

y + 51 = 99

• 140
• 150
• 48
• Answer not Given

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

n - 4 = 12

• n = 16
• n = 8
• n = 4/12
• n = 12/4