3 years ago

Y=2x X+Y=-9 What's the answer ?

1 answer:

3 0

$y=2x\\
x+y=-9\\\\
x+2x=-9\\
3x=-9\\
x=-3\\\\
y=2\cdot(-3)\\
y=-6\\\\
\boxed{(x,y)=(-3,-6)}$

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