17=3u+5(u+7)

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Solution for 17=3u+5(u+7) equation: 



17=3u+5(u+7)

We move all terms to the left:

17-(3u+5(u+7))=0



We calculate terms in parentheses: -(3u+5(u+7)), so:

3u+5(u+7)

We multiply parentheses

3u+5u+35

We add all the numbers together, and all the variables

8u+35

Back to the equation:

-(8u+35)



We get rid of parentheses

-8u-35+17=0

We add all the numbers together, and all the variables

-8u-18=0

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

-8u=18

u=18/-8

u=-2+1/4

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