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 214: 93

Answer

Ordered Pair Solution $(\frac{1}{4},8)$

Work Step by Step

We have $$1)\frac{1}{x}+y=12$$ $$2)\frac{3}{x}-y=4$$ (1)+(2) $$\frac{4}{x} = 16$$ $$x=\frac{1}{4}$$ Solving for $y$ $$y = 12-1\div\frac{1}{4}=8$$ Ordered Pair Solution $(\frac{1}{4},8)$
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