Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Appendix A - Review - A.6 Solving Equations - A.6 Assess Your Understanding - Page A51: 20

Answer

$\{-4\}$

Work Step by Step

Subtract $4$ from both sides. $3x+4-4=-8-4$ Simplify. $3x=-12$ Divide both sides by $3$. $\dfrac{3x}{3}=-\dfrac{12}{3}$ Simplify. $x=-4$ Hence, the solution to the equation is $\{-4\}$.
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