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

Y=2x X+Y=-9 What's the answer ?
asked 28.2k views
3 votes
Y=2x
X+Y=-9
What's the answer ?

asked
User Dave Merwin
by
8.2k points

1 Answer

4 votes

y=2x\\ x+y=-9\\\\ x+2x=-9\\ 3x=-9\\ x=-3\\\\ y=2\cdot(-3)\\ y=-6\\\\ \boxed{(x,y)=(-3,-6)}
answered
User Yuwen Yan
by
8.0k points
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