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 - 6-3 Solving Systems Using Elimination - Practice and Problem-Solving Exercises - Page 383: 42


The solution is: $x=5$ $y=0$

Work Step by Step

$2x=5(2-y)$ $y=(-x+5)$ then $2x+5y=10$ (1) $x+y=5$ (2) Eliminate a variable: $2x+5y=10$ $-2x+-2y=-10$ ___________________ $3y=0$ Solve for y: $y=0$ $x=5$
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