Introduction to Two-Step Equations

When solving a two-step equation which operations do you undo first?

• addition and subtraction

• addition and multiplication

• multiplication and division

• subtraction and division

Identify the steps to solve for b

• 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

Solve for w.

-6w + 1 = -11

• 2

• 1.2

• 12

• -2

Solve for t.

-4 = 2t - 2

• -1

• 1

• 4

• 0

Solve for s.

9 = 2s + 1

• 4

• -4

• 3.5

• 5

WRITE AN EQUATION
You bought a $5 magazine and four
erasers. You spent a total of $25. How
much did each eraser cost?

• 5+x=25

• 5+4x=25

• 5x=25

• 23-5=4x

Solve: 3(x-4) = -3

• 3

• -3

• 5

• -5

What is the correct step to solve for the variable?
15 = m - 5

• add 15 to both sides

• add 5 to both sides

• subtract 15 from both sides

• subtract 5 from both sides

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

Level 3

Solve for a

• a= -2

• a= -6

• a= 3

• a= 15