Algebra 1

by Hall, Prentice

Published by Prentice Hall

ISBN 10: 0133500403

ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - Mid-Chapter Quiz - Page 389: 6

Answer

Solution: (-15,-22)

Work Step by Step

Given: x=y+7 and y-8=2x Substitue in value of x: y-8=2(y+7) Distribute: y-8=2y+14 Subtract y from both sides: -8=2y-y+14 Simplify: -8=y+14 Subtract 14 from both sides: -8-14=y SImplify: y=-22 x=(-22)+7 => x= -15 Solution (-15,-22)

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