Answer
x=-1
Work Step by Step
5x+9-7x+6=x+18
(5x-7x)+(9+6)=x+18
-2x+15=x+18
-2x=x+18-15
-2x=x+3
-2x-x=3
-3x=3
x=$\frac{3}{-3}$
x=-1
Check the answer.
5(-1)+9-7(-1)+6=(-1)+18
-5+9+7+6=17
4+7+6=17
11+6=17
17=17
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 2 - Review Exercises - Page 203: 20
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