Set Up and Solve Multi-Step Equations

• 35

• -84

• 30

• 23

-4x + 1 = 21

• x=120

• x=5

• x=30

• x=-5

4 + k/2 = -3

• 14

• -14

• 4

• -2

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 0.20x + 15

• C =15 (0.20x)

• C = 15 + x + 0.20

• C = 0.20 + 15x

• x=-10

• x=2

• No Solution

• All Real Numbers

• x=3

• x=2

• x=-2

• x=1

• m=3

• m=-4

• m=-1

• All real numbers

• x=3

• x=-7

• x=0

• No Solution

• 1.5

• 6

• -6

• -1.5

• 0

• 1

• -1

• 4