Answer
x=15
Work Step by Step
$x-3=12$
We can eliminate -3 by adding 3 to both sides so that we can get the value of x itself. Therefore;
$x-3+3=12+3 $
$x=15$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equations - Lesson Check - Page 56: 2
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