-30=2(u+3)-6u

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Solution for -30=2(u+3)-6u equation: 



-30=2(u+3)-6u

We move all terms to the left:

-30-(2(u+3)-6u)=0



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

2(u+3)-6u

We add all the numbers together, and all the variables

-6u+2(u+3)

We multiply parentheses

-6u+2u+6

We add all the numbers together, and all the variables

-4u+6

Back to the equation:

-(-4u+6)



We get rid of parentheses

4u-6-30=0

We add all the numbers together, and all the variables

4u-36=0

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

4u=36

u=36/4

u=9

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