Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Review Exercises: 60

Answer

$-10$

Work Step by Step

Subtract $3x$ on both sides of the equation to obtain: $2x+20=0$ Subtract $20$ on both sides of the equation to obtain: $2x=-20$ Divide by 2 on both sides of the equation to obtain: $x = \frac{-20}{2} \\x=-10$ Check: $5(-10)+20 =3(-10) \\-50+20=-30 \\-30=-30$
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