## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 3 Linear Systems and Matrices - 3.1 Solve Linear Systems by Graphing - 3.1 Exercises - Skill Practice - Page 156: 15

C

#### Work Step by Step

To solve the equation by graphing, we graph the two lines, and we find the intersection points, knowing that these points are solutions. The problem asks us to solve algebraically, so we find: $$7\left(-\frac{2+y}{4}\right)+2y=-5 \\ y=-6$$ Thus: $$x=-\frac{2-6}{4}=1$$ Option C

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.