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: 48

Answer

Ordered Pair Solution $(2,-1)$

Work Step by Step

We have $$(1)3x+4y = 2$$ $$(2)2x+5y =-1$$ 2(1) - 3(2) $$6x -6x+8y-15y = 4+3$$ $$-7y=7$$ $$y=-1$$ Solving for $x$ $$x = (2-4(-1))\div3 = 2$$ Ordered Pair Solution $(2,-1)$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.