2u+9=7(u-3)

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Solution for 2u+9=7(u-3) equation: 



2u+9=7(u-3)

We move all terms to the left:

2u+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

2u-7u+21+9=0

We add all the numbers together, and all the variables

-5u+30=0

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

-5u=-30

u=-30/-5

u=+6

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