Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

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 - 8.1 Systems of Equations in Two Variables - 8.1 Exercise Set - Page 507: 23

Answer

$(-3,-2)$

Work Step by Step

Graphing $x=y-1$ Set $y=4 \Rightarrow x=3 \qquad $... $(3,4)$ Set $y=0 \Rightarrow x=-1 \qquad $... $(-1,0)$ Graphing $2x=3y$ Set y=$0 \Rightarrow x=0 \qquad $... $(0,0)$ Set y=$2 \Rightarrow x=3 \qquad $... $(3,2)$ Graphically solving: $x=-3,\ y=-2$. Checking:$\qquad \left\{\begin{array}{lll} -3 =-2-1 & & \\ & & \\ 2(-3)=3(-2) & & \end{array}\right.$ both equations are satisfied, $(-3,-2)$ is the solution.
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.