stewartbritni
stewartbritni
16-03-2015
Mathematics
contestada
Y=2x
X+Y=-9
What's the answer ?
Respuesta :
konrad509
konrad509
16-03-2015
[tex]y=2x\\ x+y=-9\\\\ x+2x=-9\\ 3x=-9\\ x=-3\\\\ y=2\cdot(-3)\\ y=-6\\\\ \boxed{(x,y)=(-3,-6)}[/tex]
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