Answer
-2.5
Work Step by Step
Solving for $y$, we find:
$$y=\frac{-18-7x}{-x} \\ y = \frac{-18-(7)(-4)}{-4}\\ y=-2.5$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.4 Rewrite Formuilas and Equations - 1.4 Exercises - Skill Practice - Page 31: 22
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