Precalculus (10th Edition)

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

Chapter 1 - Graphs - 1.2 Graphs of Equations in Two Variables; Intercepts; Symmetry - 1.2 Assess Your Understanding: 1

Answer

$x=-6$

Work Step by Step

Multiply the 2 with each term in the brackets: $2x+6-1=-7$ Combine like terms on the lest side of the equation: $2x+5=-7$ Isolate the $x$-term: $2x=-7-5$ Combine like terms on the right side of the equation: $2x=-12$ Divide both sides by 2: $\frac{2x}{2}$ =$\frac{-12}{2}$ Final answer: $x=-6$
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