4u-31=-9(u+2)

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Solution for 4u-31=-9(u+2) equation: 



4u-31=-9(u+2)

We move all terms to the left:

4u-31-(-9(u+2))=0



We calculate terms in parentheses: -(-9(u+2)), so:

-9(u+2)

We multiply parentheses

-9u-18

Back to the equation:

-(-9u-18)



We get rid of parentheses

4u+9u+18-31=0

We add all the numbers together, and all the variables

13u-13=0

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

13u=13

u=13/13

u=1

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