Answer
$$x=\frac{122}{75}$$
Work Step by Step
The problem asks us to solve algebraically, so we find:
$$3\cdot \frac{21+2y}{12}+12y=-4 \\ y=-\frac{37}{50} $$
Thus:
$$x=\frac{21+2\left(-\frac{37}{50}\right)}{12} \\ x=\frac{122}{75}$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 3 Linear Systems and Matrices - 3.2 Solve Linear Systems Algebraically - Guided Practice for Example 4 - Page 163: 8
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
