Answer
(-2, 3)
Work Step by Step
Multiply the first equation by 2
4x + 2y = -2
Add to the second equation
4x + 2y = -2
x - 2y = -8
5x = -10
x = -2
Plug x = -2 into x - 2y = -8
-2 - 2y = -8
-2y = -6
y = 3
Solution is (-2, 3)
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 5, Systems of Equations and Inequalities - Section 5.1 - Systems of Linear Equations in Two Variations - 5.1 Exercises - Page 446: 13
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