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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