-30=3(u-5)-6u

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Solution for -30=3(u-5)-6u equation: 



-30=3(u-5)-6u

We move all terms to the left:

-30-(3(u-5)-6u)=0



We calculate terms in parentheses: -(3(u-5)-6u), so:

3(u-5)-6u

We add all the numbers together, and all the variables

-6u+3(u-5)

We multiply parentheses

-6u+3u-15

We add all the numbers together, and all the variables

-3u-15

Back to the equation:

-(-3u-15)



We get rid of parentheses

3u+15-30=0

We add all the numbers together, and all the variables

3u-15=0

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

3u=15

u=15/3

u=5

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