SOLUTION: solve the following using the substitution method: y=-5/x 5x-y=-10

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Question 766098: solve the following using the substitution method:
y=-5/x
5x-y=-10
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y=-5/x
5x-y=-10
5x-(-5/x) =-10
multiply equation by x
5x%5E2%2B5=-10x
5x%5E2%2B10x%2B5=0
/5
x%5E2%2B2x%2B1=0
%28x%2B1%29%5E2=0
(x+1)=0
x=-1
plug x
y=-5/x
y=-5/-1
y=5
x=-1,y=5