74=-7(1+3n)+6(7n+3)

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Solution for 74=-7(1+3n)+6(7n+3) equation: 



74=-7(1+3n)+6(7n+3)

We move all terms to the left:

74-(-7(1+3n)+6(7n+3))=0

We add all the numbers together, and all the variables

-(-7(3n+1)+6(7n+3))+74=0



We calculate terms in parentheses: -(-7(3n+1)+6(7n+3)), so:

-7(3n+1)+6(7n+3)

We multiply parentheses

-21n+42n-7+18

We add all the numbers together, and all the variables

21n+11

Back to the equation:

-(21n+11)



We get rid of parentheses

-21n-11+74=0

We add all the numbers together, and all the variables

-21n+63=0

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

-21n=-63

n=-63/-21

n=+3

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