3u=-6/7

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Solution for 3u=-6/7 equation: 



3u=-6/7

We move all terms to the left:

3u-(-6/7)=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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