Answer
$(-\frac{23}{4},4)$
Work Step by Step
$4x+5y = -3$ $(1)$
$-2y=-8$ $(2)$
Divide Equation $(2)$ by -2
$y=4$
Substitute this back into Equation $(1)$
$4x+5(4)=-3$
$4x+20=-3$
$4x=-23$
$x=-\frac{-23}{4}$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 8 - Section 8.1 - Systems of Linear Equations: Substitution and Elimination - 8.1 Assess Your Understanding - Page 555: 24
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