Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 6 - Systems of Equations and Inequalities - 6-1 Solving Systems by Graphing - Lesson Check - Page 367: 1

Answer

(6,13)

Work Step by Step

$y=x+7$ $y=2x+1$ Multiply the first equation by $-1$ so that the y values will cancel, then you'll have $0=x-6$ and you can add 6 to both sides where $x=6$. Then plug in 6 for the x value in either of the equations above $y=(6)+7$ so $y=13$.
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