Algebra 1: Common Core (15th Edition)

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

Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Lesson Check - Page 97: 8

Answer

We would add 4 and then multiply by -9/2, the reciprocal of -2/9.

Work Step by Step

In order to cancel out the subtraction of 4, we must use addition. However, because x is still being multiplied by -2/9, we now must multiply by -9/2, the reciprocal of -2/9, to isolate x.
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