Elementary Technical Mathematics

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

Chapter 8 - Section 8.1 - Linear Equations with Two Variables - Exercises - Page 296: 3


(2,-1) (0,-5) (-2,11)

Work Step by Step

First solve for y, then substitute each given value for x to complete the ordered pairs. $6x+2y=10$ $6x+2y-6x=10-6x\longrightarrow$ subtract 6x from each side $2y=10-6x$ $2y\div2=(10-6x)\div2\longrightarrow$ divide each side by 2 $y=5-3x$ $y=5-3(2)=5-6=-1$ $y=5-3(0)=5-0-5$ $y=5-3(-2)=5-(-6)=5+6=11$
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