Precalculus (6th Edition)

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

Chapter 1 - Equations and Inequalities - Summary Exercises on Solving Equations - Exercises - Page 149: 2



Work Step by Step

Distribute $2$: $5-(6x+3)=2(2)-2(2x) \\5-(6x+3) = 4-4x$ Subtract each term of the binomial to obtain: $5-6x-3=4-4x \\-6x+2=4-4x$ Add $6x$ and subtract $4$ to both sides of the equation to obtain: $-6x+2+6x-4=4-4x+6x-4 \\-2=2x$ Divide $2$ to both sides to obtain: $\dfrac{-2}{2}=\dfrac{2x}{2} \\-1 = x$
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