-12=-4/7u

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Solution for -12=-4/7u equation: 



-12=-4/7u

We move all terms to the left:

-12-(-4/7u)=0



Domain of the equation: 7u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

4/7u-12=0

We multiply all the terms by the denominator


-12*7u+4=0

Wy multiply elements

-84u+4=0

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

-84u=-4

u=-4/-84

u=1/21

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