21.6=.8*F^3

Solution for 21.6=.8*F^3 equation:

Simplifying
21.6 = 0.8F3

Solving
21.6 = 0.8F3

Solving for variable 'F'.

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

Add '-0.8F3' to each side of the equation.
21.6 + -0.8F3 = 0.8F3 + -0.8F3

Combine like terms: 0.8F3 + -0.8F3 = 0.0
21.6 + -0.8F3 = 0.0

Add '-21.6' to each side of the equation.
21.6 + -21.6 + -0.8F3 = 0.0 + -21.6

Combine like terms: 21.6 + -21.6 = 0.0
0.0 + -0.8F3 = 0.0 + -21.6
-0.8F3 = 0.0 + -21.6

Combine like terms: 0.0 + -21.6 = -21.6
-0.8F3 = -21.6

Divide each side by '-0.8'.
F3 = 27

Simplifying
F3 = 27

Reorder the terms:
-27 + F3 = 27 + -27

Combine like terms: 27 + -27 = 0
-27 + F3 = 0

The solution to this equation could not be determined.