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18=n/(-9)-7
We move all terms to the left:
18-(n/(-9)-7)=0
We multiply all the terms by the denominator
-(n+18*(-9)-7)=0
We calculate terms in parentheses: -(n+18*(-9)-7), so:We get rid of parentheses
n+18*(-9)-7
determiningTheFunctionDomain n-7+18*(-9)
We add all the numbers together, and all the variables
n-169
Back to the equation:
-(n-169)
-n+169=0
We add all the numbers together, and all the variables
-1n+169=0
We move all terms containing n to the left, all other terms to the right
-n=-169
n=-169/-1
n=+169
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