College Algebra 7th Edition

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: 6

Answer

(1, -2)

Work Step by Step

Rewrite 3x + y =1 as y = 1 - 3x. Plug this into 5x + 2y = 1 5x + 2(1 - 3x) = 1 5x + 2 - 6x = 1 -x = -1 x = 1 Plug x =1 back into y = 1 - 3x y = 1 - 3(1) = -2 Solution is (1, -2)
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