joanis0412
joanis0412
20-10-2016
Mathematics
contestada
1.2x-0.8y=-6
4.8x+2.4y=60
Respuesta :
2043306702
2043306702
20-10-2016
12x-8y=-60 48x+24y=600 3x-2y=-15 2x+y=25 So y=25-2x So 3x-2(25-2x)=-15 3x-50+4x=-15 7x=35 X=5 So y=25-10=15
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