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-81=-5-4(1-6n)
We move all terms to the left:
-81-(-5-4(1-6n))=0
We add all the numbers together, and all the variables
-(-5-4(-6n+1))-81=0
We calculate terms in parentheses: -(-5-4(-6n+1)), so:We get rid of parentheses
-5-4(-6n+1)
determiningTheFunctionDomain -4(-6n+1)-5
We multiply parentheses
24n-4-5
We add all the numbers together, and all the variables
24n-9
Back to the equation:
-(24n-9)
-24n+9-81=0
We add all the numbers together, and all the variables
-24n-72=0
We move all terms containing n to the left, all other terms to the right
-24n=72
n=72/-24
n=-3
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