Question 829237: -6x+6y=6 -6x+3y=-12
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
-6x+6y=6
-6x+3y=-12
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solution by matrix method:
x = 5
y = 6
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now by elimination method:
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-6x+6y=6
(-6x+3y=-12) * -1
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-6x+6y=6
6x-3y=12
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add the system:
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3y = 18
y = 6
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-6x + 6(6) = 6
-6x + 36 = 6
-6x = -30
x = 5
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solution by elimination method:
x = 5
y = 6
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both methods agree !
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