nastyxboi
nastyxboi
10-03-2017
Mathematics
contestada
7x+2y=-13
-3x-8y=-23
Respuesta :
Trex111
Trex111
10-03-2017
x=-3
y=4
7 (-3)=-21+2 (4)=-13
-3 (-3)=9-8 (4)=-32
9-32=-23
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