-3(n+1)=-6n+21

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Solution for -3(n+1)=-6n+21 equation: 



-3(n+1)=-6n+21

We move all terms to the left:

-3(n+1)-(-6n+21)=0

We multiply parentheses

-3n-(-6n+21)-3=0

We get rid of parentheses

-3n+6n-21-3=0

We add all the numbers together, and all the variables

3n-24=0

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

3n=24

n=24/3

n=8

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