Answer
$a=-3$
Work Step by Step
Step 1. Subtract 2a from both sides of the equation.
$8+4a-2a=2a-2a+2$
$8+2a=2$
Step 2. Subtract 8 from both sides.
$8-8+2a=2-8$
$2a=-6$
Step 3. Divide both sides by 2.
$\frac{2a}{2}=\frac{-6}{2}$
$a=-3$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.7 Solving Equations with Several Steps - 9.7 Exercises - Page 678: 54
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