Solve Equations in Two Steps

What are the steps to solve for b in the equation below?

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

• Add 6 to both sides then 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

• w = 2

• w = 4

• w = 6

• w = 8

Solve for z.

6z + 3 - 4z = 9

• z = 3

• z = 60

• z = 30

• z = 1

What is a 2-step problem?

• An equation where 2 steps are needed to solve it.

• An equation where only one step is needed to solve it.

• A problem with only one operation present.

• A problem where you find the square-root of a number.

Did Sarah make an error? If so, which is the best description of her error?

• She didn't distribute correctly. The second step should read 3x - 12 = 24

• She didn't distribute correctly. The second step should read -3x - 12 = 24

• She didn't distribute correctly. The second step should read -3x + 12 = 24

• She didn't make an error.

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

Solve 2x - 3 = 1 

• 3

• 2

• 1

• -2

10.    x / 2  - 5 = 3

• x = -2

• x = 2

• x = 16

• x = 8

x/5 - 13 = 20

• 145

• 165

• 180

• 190

What is the inverse operation needed to solve for p?

2p - 254= 900

• subtraction

• addition

• multiplication

• division