3=u/10

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Solution for 3=u/10 equation: 



3=u/10

We move all terms to the left:

3-(u/10)=0

We add all the numbers together, and all the variables

-(+u/10)+3=0

We get rid of parentheses

-u/10+3=0

We multiply all the terms by the denominator


-u+3*10=0

We add all the numbers together, and all the variables

-1u+30=0

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

-u=-30

u=-30/-1

u=+30

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