Answer
x=14
Work Step by Step
-3x-5+4x=9
First combine like terms.
-5+(4x-3x)=9
-5+x=9
Then add 5 to both sides.
x=9+5
x=14
Check the answer.
-3(14)-5+4(14)=9
-42-5+56=9
-47+56=9
9=9
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 - Section 2.1 - The Addition Property of Equality - Exercise Set - Page 120: 46
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