Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 3 - Linear Systems - 3-2 Solving Systems Algebraically - Practice and Problem-Solving Exercises - Page 146: 15

Answer

y=-1; x=8

Work Step by Step

We are given two equations, x+6y=2 and 5x+4y=36, both of which have two variables in them. In order to solve this system of linear equations, we must put one equation in terms of one variable. Using the equation x+6y=2, we subtract 6y to obtain x=2-6y. We plug x=2-6y into 5x+4y=36 to obtain that 5(2-6y)+4y=36. We solve to find that y=-1. We now substitute y=-1 into x=2-6y to obtain that x equals 8.
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.