Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations in Two Variables - Exercise Set - Page 212: 52

Answer

Ordered Pair Solution $(1,5)$

Work Step by Step

We have $$1)x = \frac{1}{5}y$$ $$2)x-y=-4$$ Substituting (1) in (2) $$\frac{1}{5}y-y = -4$$ $$-\frac{4}{5}y = -4$$ $$y = 5$$ Solving for $x$ $$x=\frac{1}{5}*5 = 1$$ Ordered Pair Solution $(1,5)$
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