reesejulieann
reesejulieann
13-05-2017
Mathematics
contestada
solve for x and y please
Respuesta :
FLORC
FLORC
13-05-2017
X+y=-16
Y=3x
Substitute second equation into the first one
X+3x=-16
Add
4x=-16
Divide
X=-4
Plug into y=3x to find y
Y=3×-4
Y=-12 to check if this is true plug in x and y into first equation
-4+-12=-16
-16=-16 answers hold true :)
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