21.6-6=5d

Solution for 21.6-6=5d equation:

Simplifying
21.6 + -6 = 5d

Combine like terms: 21.6 + -6 = 15.6
15.6 = 5d

Solving
15.6 = 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
15.6 + -5d = 5d + -5d

Combine like terms: 5d + -5d = 0
15.6 + -5d = 0

Add '-15.6' to each side of the equation.
15.6 + -15.6 + -5d = 0 + -15.6

Combine like terms: 15.6 + -15.6 = 0.0
0.0 + -5d = 0 + -15.6
-5d = 0 + -15.6

Combine like terms: 0 + -15.6 = -15.6
-5d = -15.6

Divide each side by '-5'.
d = 3.12

Simplifying
d = 3.12