18=7u+5(u+6)

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Solution for 18=7u+5(u+6) equation: 



18=7u+5(u+6)

We move all terms to the left:

18-(7u+5(u+6))=0



We calculate terms in parentheses: -(7u+5(u+6)), so:

7u+5(u+6)

We multiply parentheses

7u+5u+30

We add all the numbers together, and all the variables

12u+30

Back to the equation:

-(12u+30)



We get rid of parentheses

-12u-30+18=0

We add all the numbers together, and all the variables

-12u-12=0

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

-12u=12

u=12/-12

u=-1

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