21.6=2.4n

Solution for 21.6=2.4n equation:

Simplifying
21.6 = 2.4n

Solving
21.6 = 2.4n

Solving for variable 'n'.

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

Add '-2.4n' to each side of the equation.
21.6 + -2.4n = 2.4n + -2.4n

Combine like terms: 2.4n + -2.4n = 0.0
21.6 + -2.4n = 0.0

Add '-21.6' to each side of the equation.
21.6 + -21.6 + -2.4n = 0.0 + -21.6

Combine like terms: 21.6 + -21.6 = 0.0
0.0 + -2.4n = 0.0 + -21.6
-2.4n = 0.0 + -21.6

Combine like terms: 0.0 + -21.6 = -21.6
-2.4n = -21.6

Divide each side by '-2.4'.
n = 9

Simplifying
n = 9