Answer
$x=22$.
Work Step by Step
The given equation is
$\Rightarrow x-7=15$
Add $7$ to both sides.
$\Rightarrow x-7+7=15+7$
Simplify.
$\Rightarrow x=22$
Check:-
$\Rightarrow 22-7=15$
$\Rightarrow 15=15$
True.
Hence, the solution is $x=22$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 1 - Solving Linear Equations - Chapter Test - Page 47: 1
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