Answer
$y=9$
Work Step by Step
We are given the equation $20=3y-7$. We can solve for y by first adding 7 to both sides.
$20+7=3y-7+7$
$3y=27$
Divide both sides by 3.
$\frac{3y}{3}=\frac{27}{3}$
Therefore, $y=9$.
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - Review Exercises - Page 698: 85
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