SOLUTION: Solve by following systems by substitution X+2y=1 X=y-5

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Question 868365: Solve by following systems by substitution
X+2y=1
X=y-5
Answer by mananth(16946) About Me  (Show Source):
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X+2y=1
X=y-5
(y-5)+2y=1
3y-5=1
3y=6
y=2
plug y in (2)
x=y-5
=2-5
=-3
x=-3