Question 203184: solving systems by the addition method:
x+ y = 10
2y=20-2x
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! solving systems by the addition method:
x+ y = 10
2y=20-2x
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Rewrite:
x + y = 10
y = 10 - x
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Rearrange:
x + y = 10
x + y = 10
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Obviously, the two equations are the same.
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Solution: All points of the form (x,10-x)
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Cheers,
Stan H.
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