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13-02-2017
Mathematics

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Solve using substitution.

-6x – 4y = -16
x + 3y = 19

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vegaxie000 vegaxie000

13-02-2017

x+3y=19
x=19-3y

-6(19-3y)-4y= -16
-114+18y-4y = -16
-114+14y= -16
14y= (-16+114)
14y= 98
y=(98/14)
y= 7

x+3(7)=19
x+21=19
x=(19-21)
x= -2

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