-3+4n=7(4+5n)

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Solution for -3+4n=7(4+5n) equation: 



-3+4n=7(4+5n)

We move all terms to the left:

-3+4n-(7(4+5n))=0

We add all the numbers together, and all the variables

4n-(7(5n+4))-3=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

4n-35n-28-3=0

We add all the numbers together, and all the variables

-31n-31=0

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

-31n=31

n=31/-31

n=-1

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