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14-02-2017
Mathematics

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It's a system of equations x=-4y x+6y=18

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14-02-2017

subsitute -4y for x

-4y+6y=18
2y=18
divide both sides by 2
y=9
sub back

x=-4y
x=-4(9)
x=-36

(x,y)
(9,-36)

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