SOLUTION: x+6y=20 -x+3y=7 sovle by elimination method.

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Question 321851: x+6y=20
-x+3y=7
sovle by elimination method.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations to eliminate x.
x%2B6y-x%2B3y=27
9y=27
highlight%28y=3%29
Then use either equation to solve for x,
x%2B18=20
highlight%28x=2%29