-3(7n+3)+6=18

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Solution for -3(7n+3)+6=18 equation: 



-3(7n+3)+6=18

We move all terms to the left:

-3(7n+3)+6-(18)=0

We add all the numbers together, and all the variables

-3(7n+3)-12=0

We multiply parentheses

-21n-9-12=0

We add all the numbers together, and all the variables

-21n-21=0

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

-21n=21

n=21/-21

n=-1

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