12-3n(9n)=

Solution for 12-3n(9n)= equation:

Simplifying
12 + -3n(9n) = 0

Remove parenthesis around (9n)
12 + -3n * 9n = 0

Reorder the terms for easier multiplication:
12 + -3 * 9n * n = 0

Multiply -3 * 9
12 + -27n * n = 0

Multiply n * n
12 + -27n2 = 0

Solving
12 + -27n2 = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + -27n2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -27n2 = 0 + -12
-27n2 = 0 + -12

Combine like terms: 0 + -12 = -12
-27n2 = -12

Divide each side by '-27'.
n2 = 0.4444444444

Simplifying
n2 = 0.4444444444

Take the square root of each side:
n = {-0.666666667, 0.666666667}