Answer
$x=4$
Work Step by Step
$x+11=15\\x+11-11=15-11\\x=4$
Checking the solution: $4+11=15$, which is true.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.2 - Linear Equations in One Variable - 1.2 Exercises - Page 87: 15
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