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10-01-2017
Mathematics

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Solve –x + 2y = 12 x + 6y = 20 using the elimination method. (4, 4) (0, 6) (-12, 0) (-4, 4)

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10-01-2017

–x + 2y = 12
x + 6y = 20
------------------add
8y = 32
y = 32/8
y = 4

–x + 2y = 12
–x + 2(4) = 12
-x = 12 -8
x = -4

answer: (-4, 4)

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