garagajo3
garagajo3
14-11-2014
Mathematics
contestada
15x—3y=12
Y=5x—4
4x—y=-4
-8x+2y=2
Respuesta :
Jelena
Jelena
15-11-2014
15x-3y=12
y=5x—4
I'm also not sure what your question is, but this is what I got by solving it like a regular equation.
15x-3(5x-4)=12
15x-15x+12=12
0=12-12
0=0
4x-y=-4
-8x+2y=2
-y=-4-4x /: (-1)
y=4+4x
-8x+2y=2
-8x+2(4+4x)=2
-8x+8+8x=2
0=-6
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