raelyn1
raelyn1
16-11-2016
Mathematics
contestada
what is the answer to y+x=-2 and 5x-3y=22
Respuesta :
red5675
red5675
16-11-2016
5x + 3y = 22
5x + 3*4 = 22
5x = 10
x = 2
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apologiabiology
apologiabiology
16-11-2016
gg easy
multiply first equation by 3 and add to second
3x+3y=-6
5x-3y=22 +
8x+0y=16
8x=16
divide boths ides by 8
x=2
sub back
y+x=-2
y+2=-2
minus 2
y=-4
x=2
y=-4
(x,y)
(2,-4)
Answer Link
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