3=2u+3(u+6)

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Solution for 3=2u+3(u+6) equation: 



3=2u+3(u+6)

We move all terms to the left:

3-(2u+3(u+6))=0



We calculate terms in parentheses: -(2u+3(u+6)), so:

2u+3(u+6)

We multiply parentheses

2u+3u+18

We add all the numbers together, and all the variables

5u+18

Back to the equation:

-(5u+18)



We get rid of parentheses

-5u-18+3=0

We add all the numbers together, and all the variables

-5u-15=0

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

-5u=15

u=15/-5

u=-3

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