Solving Two-Step Equations Models

Solve:
32 - 7x = -6(x + 3)

• 50

• 3

• -3

• -50

What is the first step in solving the following equation?

-3x + 5 = 20

• Subtract 5 from both sides

• Divide both sides by -3

• Divide both sides by 3

• add 3x to both sides

Solve for x. 
x + 7g = 9

• x = 9 - 7g

• x = 9 / 7g

• x = 9 + 7g

• x = 7g - 9

Solve the given equation (click on picture to enlarge)

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

What was done to solve the equation?

• add 8 to both sides, then divide both sides by 5

• add 8 to both sides, then divide both sides by 40

• subtract 8 from both sides, then divide both sides by 5

• subtract 8 from both sides, then multiply both sides by 5

5 = f - 2

• 4

• 7

• -3

• 2

• 50
• -12.5
• -50
• 12.5

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12