4u+16=-9(u-9)

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Solution for 4u+16=-9(u-9) equation: 



4u+16=-9(u-9)

We move all terms to the left:

4u+16-(-9(u-9))=0



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

-9(u-9)

We multiply parentheses

-9u+81

Back to the equation:

-(-9u+81)



We get rid of parentheses

4u+9u-81+16=0

We add all the numbers together, and all the variables

13u-65=0

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

13u=65

u=65/13

u=5

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