Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Appendix A - Equations and Inequalities - Exercises - Page 416: 1

Answer

True

Work Step by Step

Step 1: $2x+5=x-3$ Step 2: Subtracting $5$ from both sides, $2x+5-5=x-3-5$ Step 3: $2x=x-8$ Step 4: Subtracting x from both sides, $2x-x=x-x-8$ Step 5: Solving, $x=-8$. Check: Step 1: $2(-8)+5=-8-3$ Step 2: $-16+5=-11$ Step 3: $-11=-11$ Step 4: $0=0$ Therefore, the statement is true and the solution set of the equation is indeed {$-8$}.
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