Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.8 Solving Equations - A.8 Assess Your Understanding - Page A70: 9



Work Step by Step

Adding 3 to both sides we have $$ 2x - 3 = 5\Longrightarrow 2x-3+3=5+3 \Longrightarrow 2x=8 $$ Dividing both sides by $2$ gives $$ x=4$$
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