-3u+1=7(u-7)

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Solution for -3u+1=7(u-7) equation: 



-3u+1=7(u-7)

We move all terms to the left:

-3u+1-(7(u-7))=0



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

7(u-7)

We multiply parentheses

7u-49

Back to the equation:

-(7u-49)



We get rid of parentheses

-3u-7u+49+1=0

We add all the numbers together, and all the variables

-10u+50=0

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

-10u=-50

u=-50/-10

u=+5

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