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OpenStudy (anonymous):
solve system of equations x-y=-3 3x-9y=9
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OpenStudy (anonymous):
one easy option is to multiply the first equation by 9. thus you get 9x-9y = -27. Add the two equations up to get 12x = -18. x = -3/2. plug back in to see that y also equals -3/2. hope this helps!
OpenStudy (anonymous):
A.6,3 B.-6,-3 C.-3,0 D.-1.5,-1.5
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