Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - Chapter Test - Page 407: 6


Solution: (3, -7)

Work Step by Step

The 2 Equations are: 1. y+2x=-1 2. y-3x=-16 First, subtract the second equation from the first equation. You get: 5x=15 (Divide by 5 on both sides of the equation) x=3 Now plug this value of x into the first equation to find the value of y. y+2(3)=-1 y+6=-1. (Subtract 6 from both sides of the equation) y=-7 So our solution is (3, -7)
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