-31=-7/4u

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Solution for -31=-7/4u equation: 



-31=-7/4u

We move all terms to the left:

-31-(-7/4u)=0



Domain of the equation: 4u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

7/4u-31=0

We multiply all the terms by the denominator


-31*4u+7=0

Wy multiply elements

-124u+7=0

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

-124u=-7

u=-7/-124

u=7/124

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