Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 10 - Review Exercises - Page 491: 23

Answer

$(3,5)$

Work Step by Step

To solve, we multiply each equation by a number that will make one of the variables cancel when the equations are added. Thus, we multiply the top equation by 1 and the bottom equation by -4 and add to find: $ -11y = -55 \\ y =5$ We now solve for x: $x + 2(5) = 13 \\ x =3$
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