Answer
x=2
Work Step by Step
Isolating x on one side of the equation, we obtain:
$$ 8x=16 \\ x=2$$
Checking:
$$6(2)-7 =-2(2) + 9 \\ 5=5$$
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 3 Linear Systems and Matrices - Cumulative Review Chapters 1-3 - Page 232: 4
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