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13-02-2018
Mathematics

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-x - 7y = 14 -4x - 14y = 28

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13-02-2018

I am assuming it is a system of equations and that you need to find x and y

-x-7y=14 so -x=14+7y, x=-7y-14

-4x-14y=28 substitute x ,
-4(-7y-14)-14y=28,
28y+56-14y=28,
14y=28-56
y= -28/14= -2

x=-7y-14= -7(-2)-14=14-14=0

x=0 and y= -2

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