Answer
$a=7$
Work Step by Step
We need to get the a alone. Thus, we cancel out the subtraction by adding 2.5 on both sides, giving us an answer of $7=a$.
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 2 - Solving Equations - Chapter Review - Page 153: 7
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