Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations in Two Variables - Exercise Set - Page 212: 1

Answer

The given ordered pair is a solution.

Work Step by Step

We have $$x-y = 3$$ $$2x-4y = 8$$ Possible solution $(2,-1)$ Substituting on Equation (1) $$2-(-1) = 3$$ $$2 + 1 = 3$$ $$3=3$$ Substituting on Equation (2) $$2(2) -4(-1) = 8$$ $$4+4 = 8$$ $$8=8$$ The given ordered pair is a solution.
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