3=3u+2u

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Solution for 3=3u+2u equation: 



3=3u+2u

We move all terms to the left:

3-(3u+2u)=0

We add all the numbers together, and all the variables

-(+5u)+3=0

We get rid of parentheses

-5u+3=0

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

-5u=-3

u=-3/-5

u=3/5

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