Solve the system of equations by graphing. x+y=11, x=y-7

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anonymous · Answer

Well here's what x+y=11 looks like as a graph http://www.wolframalpha.com/input/?i=+x%2By%3D11 And here's what x=y-7 looks like http://www.wolframalpha.com/input/?i=x%3Dy-7

anonymous · Answer

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 	Question 103396: solve the system of equation by graphing
x+y=11
x-y=7
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Answer by Fombitz(13828)   (Show Source):
You can put this solution on YOUR website!
 
Looks like the lines intersect at x=9.
When x = 9, then using the first equation:



 

When x = 9, then using the second equation:



So the intersection point (solution) is (9,2).