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7(n-2)=7n
We move all terms to the left:
7(n-2)-(7n)=0
We add all the numbers together, and all the variables
-7n+7(n-2)=0
We multiply parentheses
-7n+7n-14=0
We add all the numbers together, and all the variables
-14!=0
There is no solution for this equation
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