My question was how to solve it ? I neeed to know how to do it step-by-step too.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter2: Solving Equations
Section2.4: Variables And Equations
Problem 2E
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My question was how to solve it ? I neeed to know how to do it step-by-step too.

 

 

 

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