Algebra 1: Common Core (15th Edition)

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

Chapter 7 - Exponents and Exponential Functions - 7-2 Multiplying Powers With the Same Base - Practice and Problem-Solving Exercises: 60

Answer

The values are x=-4 and y=-5

Work Step by Step

To solve 2x - y = -3 (x - y = 1 )$\times$ -1 2x - y = -3 -x +y = -1. --> add the two equations x = -3-1 x = -4 To solve for y 2(-4)-y =-3 -8 -y =-3 -y = -3+8 -y = 5 y =-5
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