1-7n+6=21

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Solution for 1-7n+6=21 equation: 



1-7n+6=21

We move all terms to the left:

1-7n+6-(21)=0

We add all the numbers together, and all the variables

-7n-14=0

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

-7n=14

n=14/-7

n=-2

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