Dragonsbreath
Dragonsbreath
20-04-2017
Mathematics
contestada
I need help . Top left corner
Respuesta :
annekataylor
annekataylor
20-04-2017
substitute
x+12y=-15
-8x+6y=18
x=-15-12y
-8(-15-12y)+6y=18
120+96y+6y=18
102y=-102
y=-1
x+12(-1)=-15
x-12=-15
x=-3
(-3,-1)
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