libbyh71199
libbyh71199
31-03-2014
Mathematics
contestada
Solve the system
-3x+7y=-12
3x+8y=12
Respuesta :
Demon
Demon
31-03-2014
line up both equations according to terms and add
-3x + 7y= -12
+ 3x + 8y=12
--------------------------------------
15y= 0
y= 0 so plug back that into either equations and get x=4
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