9n=7(5n+4)

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Solution for 9n=7(5n+4) equation: 



9n=7(5n+4)

We move all terms to the left:

9n-(7(5n+4))=0



We calculate terms in parentheses: -(7(5n+4)), so:

7(5n+4)

We multiply parentheses

35n+28

Back to the equation:

-(35n+28)



We get rid of parentheses

9n-35n-28=0

We add all the numbers together, and all the variables

-26n-28=0

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

-26n=28

n=28/-26

n=-1+1/13

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