Solving Equations

12x = 144

• x = 12
• x = 4
• x = 2
• x = 132

3y = -15

• -5
• 5
• -3
• 3

-4x + 1 = 21

• x=120
• x=5
• x=30
• x=-5

5 = 7s - 9

• 2
• 6
• 7
• 8

-30 - 5x = 120

• x = 18
• x = -18
• x = 30
• x = -30

m - 7 + 5m = 11

• m = 6

• m = -2

• m = 4

• m = 3

-10(2m + 1) = - 50

• m = -7

• m = 20

• m = 5

• m = 2

15f + 12 - 9 - 11f = 43

• f = - 9

• f = 11

• f = - 8

• f = 10

 $16\ =\frac{k}{11}$  

The variable, k, is being divided by 11. What step needs to be completed to isolate the variable k?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

Solve for x in the following equation:
 $\frac{x}{-4}$  = 9

• 13

• 36

• -36

•  $\frac{-4}{9}$