7(3n+1)=7(9n+1)+3

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Solution for 7(3n+1)=7(9n+1)+3 equation: 



7(3n+1)=7(9n+1)+3

We move all terms to the left:

7(3n+1)-(7(9n+1)+3)=0

We multiply parentheses

21n-(7(9n+1)+3)+7=0



We calculate terms in parentheses: -(7(9n+1)+3), so:

7(9n+1)+3

We multiply parentheses

63n+7+3

We add all the numbers together, and all the variables

63n+10

Back to the equation:

-(63n+10)



We get rid of parentheses

21n-63n-10+7=0

We add all the numbers together, and all the variables

-42n-3=0

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

-42n=3

n=3/-42

n=-1/14

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