21.6=5.4x

Solution for 21.6=5.4x equation:

Simplifying
21.6 = 5.4x

Solving
21.6 = 5.4x

Solving for variable 'x'.

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

Add '-5.4x' to each side of the equation.
21.6 + -5.4x = 5.4x + -5.4x

Combine like terms: 5.4x + -5.4x = 0.0
21.6 + -5.4x = 0.0

Add '-21.6' to each side of the equation.
21.6 + -21.6 + -5.4x = 0.0 + -21.6

Combine like terms: 21.6 + -21.6 = 0.0
0.0 + -5.4x = 0.0 + -21.6
-5.4x = 0.0 + -21.6

Combine like terms: 0.0 + -21.6 = -21.6
-5.4x = -21.6

Divide each side by '-5.4'.
x = 4

Simplifying
x = 4