#### Answer

x=1 or x=-3

#### Work Step by Step

x+y=-1 (use the second equation solve for y )
y=-1-x
Replace y with -1-x in the first equation, and then solve for x
$x^{2}-2(-1-x)=5$
$x^{2}+2+2x=5$
$x^{2}+2x-3=0$
$(x-1)(x+3)=0$
x=1 or x=-3

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

x=1 or x=-3

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