College Algebra (10th Edition)

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: 19

Answer

$x=6$ $y=2$ $(6,2)$

Work Step by Step

$x+y = 8$ $(1)$ $x-y=4$ $(2)$ Add Equation $(1)$ and Equation $(2)$ and we get $2x=12$ $x=6$ Substitute this back into Equation $(1)$ $6+y=8$ $y=2$
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