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: 31

Answer

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

Work Step by Step

We use the addition method below: We add the 2 equations: $16x-36y=70$ $4x-9y=17$ Multiply both sides of the second equation by $-4$ to cancel $x$. $+16x-36y=70$ $\underline{-16x+36y=-68}$ $0=2$ This is a false statement. No solution. So the two equations/lines are parallel.
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