Caden12
Caden12
10-05-2016
Mathematics
contestada
3x-2y=12 and 2x+4y=16
Respuesta :
apologiabiology
apologiabiology
10-05-2016
eliminate
multiply first equation by 2
6x-4y=24
add to other equaiton
6x-4y=24
2x+4y=16 +
8x+0y=40
8x=40
divide 8
x=5
sub
2x+4y=16
2(5)+4y=16
10+4y=16
4y=6
divide 4
y=6/4=3/2
(5,3/2)
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