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5n-51=-1-5(1+2n)
We move all terms to the left:
5n-51-(-1-5(1+2n))=0
We add all the numbers together, and all the variables
5n-(-1-5(2n+1))-51=0
We calculate terms in parentheses: -(-1-5(2n+1)), so:We get rid of parentheses
-1-5(2n+1)
determiningTheFunctionDomain -5(2n+1)-1
We multiply parentheses
-10n-5-1
We add all the numbers together, and all the variables
-10n-6
Back to the equation:
-(-10n-6)
5n+10n+6-51=0
We add all the numbers together, and all the variables
15n-45=0
We move all terms containing n to the left, all other terms to the right
15n=45
n=45/15
n=3
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