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-19=+7n-7
We move all terms to the left:
-19-(+7n-7)=0
We add all the numbers together, and all the variables
-(7n-7)-19=0
We get rid of parentheses
-7n+7-19=0
We add all the numbers together, and all the variables
-7n-12=0
We move all terms containing n to the left, all other terms to the right
-7n=12
n=12/-7
n=-1+5/7
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