Elementary Technical Mathematics

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

Chapter 9 - Section 9.3 - Solving Pairs of Linear Equations by Substitution - Exercises - Page 334: 16


There are no common solutions.

Work Step by Step

$2x+8y=12$ $x=-4y$ Substitute -4y for x in the first equation. $2(-4y)+8y=12\longrightarrow$ simplify $-8y+8y=12\longrightarrow$ simplify $0=12$ Since this is a false statement, there are no common solutions for the 2 equations.
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