-72=-9(5+u)

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Solution for -72=-9(5+u) equation: 



-72=-9(5+u)

We move all terms to the left:

-72-(-9(5+u))=0

We add all the numbers together, and all the variables

-(-9(u+5))-72=0



We calculate terms in parentheses: -(-9(u+5)), so:

-9(u+5)

We multiply parentheses

-9u-45

Back to the equation:

-(-9u-45)



We get rid of parentheses

9u+45-72=0

We add all the numbers together, and all the variables

9u-27=0

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

9u=27

u=27/9

u=3

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