Lumen OHM

Translate and solve: $\displaystyle {n}$ divided by $\displaystyle {9}$ is equal to $\displaystyle -{21}$ .

Translation:

$\displaystyle {n}$ =

[more..]

\displaystyle

Enter your answer as an equation. Example: y=3x^2+1, 2+x+y=3
Be sure your variables match those in the question

Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity