Answer
z=$\frac{9}{4}$
Work Step by Step
$12=4z+3$
$4z+3=12$
First subtract 3 from both sides.
$4z=12-3$
$4z=9$
Then divide both sides by 4.
4z$\div$4=9$\div$4
z=$\frac{9}{4}$
Check the answer.
12=4($\frac{9}{4}$)+3
12=9+3
12=12
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 2.2 - The Multiplication Property of Equality - Exercise Set - Page 130: 37
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