Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 3 - Section 3.2 - Problem Solving and Business Applications Using Systems of Equations - Exercise Set - Page 206: 28



Work Step by Step

As per the statement: $x+y=4200/6$ and $x-y=4200/7$ After adding the given two equations, we get $2x=700+600 \implies 2x=1300$ or, $x=650$ Now, $650+y=4200/6 \implies y=50$ Thus, $x=650,y=50$
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