janessa1
janessa1
07-01-2016
Mathematics
contestada
what is 14x+2y=6 -7x-2y=-13
Respuesta :
Billymkhoi
Billymkhoi
07-01-2016
14x+2y=6
(1)
-7x-2y= -13
(2)
Multiply
(2)
by 2, we have:
-14x-4y= -26
(3)
Take (1)+(3), we can solve and get
x= -1, y= 10
~
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