5u+9=-7(u-3)

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Solution for 5u+9=-7(u-3) equation: 



5u+9=-7(u-3)

We move all terms to the left:

5u+9-(-7(u-3))=0



We calculate terms in parentheses: -(-7(u-3)), so:

-7(u-3)

We multiply parentheses

-7u+21

Back to the equation:

-(-7u+21)



We get rid of parentheses

5u+7u-21+9=0

We add all the numbers together, and all the variables

12u-12=0

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

12u=12

u=12/12

u=1

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