Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - Quiz: 1

Answer

$x=2$

Work Step by Step

Distribute $3$ to obtain: $3x-15+2=1-(4+2x) \\3x-13=1-(4+2x)$ Subtract each term of the binomial to obtain: $3x-13=1-4-2x \\3x-13=-3-2x$ Add $2x$ and $13$ to both sides of the equation then combine like terms to obtain: $3x-13+2x+13=-3-2x+2x+13 \\5x=10$ Divide $5$ to both sides: $\frac{5x}{5}=\frac{10}{5} \\x=2$
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