7.12 2-step equations practice problems

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Tags

CCSS.7.EE.B.4A

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they are applied.

Tags

CCSS.7.EE.B.4A

Front

Solve for x: 1/2 x + 4 = 15

Back

x = 22

Tags

CCSS.7.EE.B.4A

Front

Solve for x: 3x - 5 = 22

Back

x = 9

Tags

CCSS.7.EE.B.4A

Front

Solve for y: y/3 + 4 = 25

Back

y = 63

Tags

CCSS.7.EE.B.4A

Front

What is the first step to solve the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to get 2x = 8.

Tags

CCSS.7.EE.B.4A

Front

What is the purpose of using parentheses in equations?

Back

Parentheses indicate which operations should be performed first in an equation.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

If Hailey spent $35.97 on 2 shirts and a pair of pants costing $17.99, how do you find the cost of each shirt?

Back

Subtract the cost of pants from the total, then divide by 2.

Tags

CCSS.HSA.REI.A.1

Front

How do you calculate change from a purchase?

Back

Subtract the total cost from the amount paid.

Tags

CCSS.4.MD.A.2

Front

If a coffee shop sells mugs for $12.79, how much change will you get from a $20 bill?

Back

You will receive $7.21.

Tags

CCSS.7.EE.B.3