Answer
solution
Work Step by Step
Substitute -5 into the equation for the variable and then simplify to see if the equation is true or false.
-4y+21=-7y+15
-4(-2)+21=-7(-2)+15
8+21=14+15
29=29
This is a solution.
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 1 - Section 1.7 - Multiplication and Division of Real Numbers - Exercise Set - Page 85: 100
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