399=7(7x-34)

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Solution for 399=7(7x-34) equation: 



399=7(7x-34)

We move all terms to the left:

399-(7(7x-34))=0



We calculate terms in parentheses: -(7(7x-34)), so:

7(7x-34)

We multiply parentheses

49x-238

Back to the equation:

-(49x-238)



We get rid of parentheses

-49x+238+399=0

We add all the numbers together, and all the variables

-49x+637=0

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

-49x=-637

x=-637/-49

x=+13

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