Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 112: 12


$y=4-2x$ (x solutions listed below)

Work Step by Step

We first isolate y by subtracting by 4x on both sides to get that $2y=8-4x$. We now divide by 2 on both sides to isolate y and get that: $y=4-2x$. We then plug in the different values of x: $y=4-2(-2)=8 \\\\ y=4-2(1)=2 \\\\ y=4-2(3)=-2$
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