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PIT_PIT [208]
3 years ago
9

If a + b + c = -2 and x + y = 10, what is -9a + 2x - 9b - 9c + 2y?

Mathematics
1 answer:
MaRussiya [10]3 years ago
4 0
38
because since all abc and xy have the same coefficients it makes it easier. 
i just made a=-2, b=-4,and c=4 because when added up it equals -2
i also made both x and y =5 becasue when added up it equals 10
so, -9(-2)+2(5)-9(-4)-9(4)+2(5)
18+10+36-36+10=38
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