20=4(u+1)

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



20=4(u+1)

We move all terms to the left:

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



We calculate terms in parentheses: -(4(u+1)), so:

4(u+1)

We multiply parentheses

4u+4

Back to the equation:

-(4u+4)



We get rid of parentheses

-4u-4+20=0

We add all the numbers together, and all the variables

-4u+16=0

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

-4u=-16

u=-16/-4

u=+4

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