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-4-2n=4(5n-1)
We move all terms to the left:
-4-2n-(4(5n-1))=0
We calculate terms in parentheses: -(4(5n-1)), so:We get rid of parentheses
4(5n-1)
We multiply parentheses
20n-4
Back to the equation:
-(20n-4)
-2n-20n+4-4=0
We add all the numbers together, and all the variables
-22n=0
n=0/-22
n=0
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