18=-8u+6(u+2)

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Solution for 18=-8u+6(u+2) equation: 



18=-8u+6(u+2)

We move all terms to the left:

18-(-8u+6(u+2))=0



We calculate terms in parentheses: -(-8u+6(u+2)), so:

-8u+6(u+2)

We multiply parentheses

-8u+6u+12

We add all the numbers together, and all the variables

-2u+12

Back to the equation:

-(-2u+12)



We get rid of parentheses

2u-12+18=0

We add all the numbers together, and all the variables

2u+6=0

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

2u=-6

u=-6/2

u=-3

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