-18=2(u+7)-6u

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Solution for -18=2(u+7)-6u equation: 



-18=2(u+7)-6u

We move all terms to the left:

-18-(2(u+7)-6u)=0



We calculate terms in parentheses: -(2(u+7)-6u), so:

2(u+7)-6u

We add all the numbers together, and all the variables

-6u+2(u+7)

We multiply parentheses

-6u+2u+14

We add all the numbers together, and all the variables

-4u+14

Back to the equation:

-(-4u+14)



We get rid of parentheses

4u-14-18=0

We add all the numbers together, and all the variables

4u-32=0

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

4u=32

u=32/4

u=8

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