Answer
Use properties and see explanation
Work Step by Step
$5+(x-5)=x$ or $x+(5-5) = x $ by the commutative and associative properties.
Then $x+0=x$ by the additive identity property.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - Chapter Test - Page 65: 3
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