SOLUTION: x-y=4 x-2y=10

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Question 178814: x-y=4
x-2y=10
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
x-y=4.......eq 1
x-2y=10.....eq 2
:
subtract all terms in eq 2 from terms in equation 1:
:
x terms will be eliminated because x-x=0. We are left with -y+2y=4-10
:
highlight%28y=-6%29
:
take y's found value and plug it back into either eq 1 or 2 . I chose eq 1
:
x-(-6)=4
:
x+6=4
:
highlight%28x=-2%29
:
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx-4%2C%281%2F2%29x-5%29