Solve for n
n=15
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3\times 3=n-4-2
Variable n cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3n^{2}, the least common multiple of n^{2},3n^{2}.
9=n-4-2
Multiply 3 and 3 to get 9.
9=n-6
Subtract 2 from -4 to get -6.
n-6=9
Swap sides so that all variable terms are on the left hand side.
n=9+6
Add 6 to both sides.
n=15
Add 9 and 6 to get 15.
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