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: 4

Answer

The given ordered pair is not a solution.

Work Step by Step

We have $$2x-5y = -2$$ $$3x+4y = 4$$ Possible solution $(4,2)$ Substituting on Equation (1) $$2(4)-5(2) = -2$$ $$8 - 10 = -2$$ $$-2=-2$$ Substituting on Equation (2) $$3(4) +4(2) = 4$$ $$12+8 = 4$$ $$20\ne4$$ The given ordered pair is not a solution.
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