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Y and X coordinates

Algebra
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system equations algebraically x-y=6 and  x+3 y= -6 what are y and  x coordinate for 3 and 6

Nov 24th, 2014

x - y = 6---------(i)

x + 3y = -6 --------(ii)

subtracting equation i from ii

-4y = 12

y = -3

x - (-3) = 6

x+3=6

x = 3

answer in bold.

Nov 24th, 2014

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