how do i solve 7x-y=21

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02-12-2014
Mathematics

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how do i solve 7x-y=21

Sagot :

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Solve for x. 3/8-2/3x=11/12?

NasimAljabri NasimAljabri · Answer 1 · 2014-12-02T00:13:09-05:00

NasimAljabri NasimAljabri

02-12-2014

it is 3 because we multiply 3 and 7 and we get 21

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aceituno98 aceituno98 · Answer 2 · 2014-12-02T00:57:06-05:00

aceituno98 aceituno98

02-12-2014

The answer answer is actually -3 because you divided 7 from 21 and you get 3 then you divided -1 because the y has a negative sing on it and you want it to be positive. That is why the answer is -3

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Sagot :

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