-30=-6/7u

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Solution for -30=-6/7u equation: 



-30=-6/7u

We move all terms to the left:

-30-(-6/7u)=0



Domain of the equation: 7u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

6/7u-30=0

We multiply all the terms by the denominator


-30*7u+6=0

Wy multiply elements

-210u+6=0

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

-210u=-6

u=-6/-210

u=1/35

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