Answer
$$ y=15,\:x=12$$
Work Step by Step
Solving the system of equations using elimination, we find:
$$ \begin{bmatrix}\frac{1}{3}x+\frac{1}{5}y=7\\ \frac{1}{3}x-\frac{4}{5}y=-8\end{bmatrix}\\ -y=-15\: \\ y=15 \\ x=12$$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 8 - Systems of Linear Equations and Problem Solving - 8.2 Solving by Substitution or Elimination - 8.2 Exercise Set - Page 517: 40
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.
