6/7=-3u

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Solution for 6/7=-3u equation: 



6/7=-3u

We move all terms to the left:

6/7-(-3u)=0

We get rid of parentheses

3u+6/7=0

We multiply all the terms by the denominator


3u*7+6=0

Wy multiply elements

21u+6=0

We move all terms containing u to the left, all other terms to the right

21u=-6

u=-6/21

u=-2/7

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