20=4f

Solution for 20=4f equation:

Simplifying
20 = 4f

Solving
20 = 4f

Solving for variable 'f'.

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

Add '-4f' to each side of the equation.
20 + -4f = 4f + -4f

Combine like terms: 4f + -4f = 0
20 + -4f = 0

Add '-20' to each side of the equation.
20 + -20 + -4f = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -4f = 0 + -20
-4f = 0 + -20

Combine like terms: 0 + -20 = -20
-4f = -20

Divide each side by '-4'.
f = 5

Simplifying
f = 5