Solve for n
n=-1
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3\times 3=n-4+2\times 7
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\times 7
Multiply 3 and 3 to get 9.
9=n-4+14
Multiply 2 and 7 to get 14.
9=n+10
Add -4 and 14 to get 10.
n+10=9
Swap sides so that all variable terms are on the left hand side.
n=9-10
Subtract 10 from both sides.
n=-1
Subtract 10 from 9 to get -1.
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