Tuesday, August 13, 2013

Solve: 8x - 10y = -24, -8x + 6y = 40

D2: 8x - 10y = -24
D2: -8x + 6y = 40 

4x-5y=-12
-4x+3y=20 

-2y=8 
y=-4 


-8x+6(-4)=40 

x=(40+24)/(-8) 
x=-8 

:)

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