-3n+7(1+2n)=84

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Solution for -3n+7(1+2n)=84 equation: 



-3n+7(1+2n)=84

We move all terms to the left:

-3n+7(1+2n)-(84)=0

We add all the numbers together, and all the variables

-3n+7(2n+1)-84=0

We multiply parentheses

-3n+14n+7-84=0

We add all the numbers together, and all the variables

11n-77=0

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

11n=77

n=77/11

n=7

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