-30=5(u-4)-7u

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Solution for -30=5(u-4)-7u equation: 



-30=5(u-4)-7u

We move all terms to the left:

-30-(5(u-4)-7u)=0



We calculate terms in parentheses: -(5(u-4)-7u), so:

5(u-4)-7u

We add all the numbers together, and all the variables

-7u+5(u-4)

We multiply parentheses

-7u+5u-20

We add all the numbers together, and all the variables

-2u-20

Back to the equation:

-(-2u-20)



We get rid of parentheses

2u+20-30=0

We add all the numbers together, and all the variables

2u-10=0

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

2u=10

u=10/2

u=5

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