Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - Chapter Test - Page 227: 10



Work Step by Step

Recall, if we wanted to solve the system by graphing it, we would use the fact that the intersection of the lines on the graph is the solution. Here, we solve the equation using the substitution method to obtain: $$4\cdot \frac{-2-3y}{2}+7y=-6 \\ y=-2$$ Thus: $$x=\frac{-2-3\left(-2\right)}{2}=2$$
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