35=7u+7(u-3)

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Solution for 35=7u+7(u-3) equation: 



35=7u+7(u-3)

We move all terms to the left:

35-(7u+7(u-3))=0



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

7u+7(u-3)

We multiply parentheses

7u+7u-21

We add all the numbers together, and all the variables

14u-21

Back to the equation:

-(14u-21)



We get rid of parentheses

-14u+21+35=0

We add all the numbers together, and all the variables

-14u+56=0

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

-14u=-56

u=-56/-14

u=+4

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