21(1+3n)=12n

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Solution for 21(1+3n)=12n equation: 



21(1+3n)=12n

We move all terms to the left:

21(1+3n)-(12n)=0

We add all the numbers together, and all the variables

21(3n+1)-12n=0

We add all the numbers together, and all the variables

-12n+21(3n+1)=0

We multiply parentheses

-12n+63n+21=0

We add all the numbers together, and all the variables

51n+21=0

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

51n=-21

n=-21/51

n=-7/17

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