Algebra 1: Common Core (15th Edition)

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

Chapter 9 - Quadratic Functions and Equations - 9-7 Linear Quadratic, and Exponential Models - Practice and Problem-Solving Exercises - Page 594: 37

Answer

$x=1$ $y=-2$

Work Step by Step

$-2x+15y=-32$ $7x-5y=17$ Multiply 3 to each side for the second equation $-2x+15y=-32$ $21x-15y=51$ ____________ $19x=19$ $x=1$ Solve for y: $-2(1)+15y=-32$ $-2+15y=-32$ $y=-2$
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