25=7(u+4)-4u

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Solution for 25=7(u+4)-4u equation: 



25=7(u+4)-4u

We move all terms to the left:

25-(7(u+4)-4u)=0



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

7(u+4)-4u

We add all the numbers together, and all the variables

-4u+7(u+4)

We multiply parentheses

-4u+7u+28

We add all the numbers together, and all the variables

3u+28

Back to the equation:

-(3u+28)



We get rid of parentheses

-3u-28+25=0

We add all the numbers together, and all the variables

-3u-3=0

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

-3u=3

u=3/-3

u=-1

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