Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 9 - Section 9.2 - Solving Pairs of Linear Equations by Addition - Exercises - Page 332: 37


The two equations/lines are $parallel$. No solution.

Work Step by Step

We use the addition method below: We add the two equations: $5x-8y=10$ $-10x+16y=8$ Multiply both sides of the first equation by $2$ to cancel $x$. $+10x-16y=20$ $\underline{-10x+16y=8}$ $0=28$ This is a false statement. No solution. So the two equations/lines are parallel.
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