4u+20=7(u-1)

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Solution for 4u+20=7(u-1) equation: 



4u+20=7(u-1)

We move all terms to the left:

4u+20-(7(u-1))=0



We calculate terms in parentheses: -(7(u-1)), so:

7(u-1)

We multiply parentheses

7u-7

Back to the equation:

-(7u-7)



We get rid of parentheses

4u-7u+7+20=0

We add all the numbers together, and all the variables

-3u+27=0

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

-3u=-27

u=-27/-3

u=+9

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