Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.3 - Solving Linear Equations - Exercise Set - Page 141: 4



Work Step by Step

$3x+2x+64=40-7x$ $5x+64=40-7x$ $5x+7x+64=40$ $12x+64=40$ $12x=40-64$ $12x=-24$ $x=\frac{-24}{12}$ $x=-2$ Check the answer. 3(-2)+2(-2)+64=40-7(-2) -6+(-4)+64=40-(-14) -10+64=40+14 54=54
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