-3(7n-7)=168

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Solution for -3(7n-7)=168 equation: 



-3(7n-7)=168

We move all terms to the left:

-3(7n-7)-(168)=0

We multiply parentheses

-21n+21-168=0

We add all the numbers together, and all the variables

-21n-147=0

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

-21n=147

n=147/-21

n=-7

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