21.6+d=5d

Solution for 21.6+d=5d equation:

Simplifying
21.6 + d = 5d

Solving
21.6 + d = 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.
21.6 + d + -5d = 5d + -5d

Combine like terms: d + -5d = -4d
21.6 + -4d = 5d + -5d

Combine like terms: 5d + -5d = 0
21.6 + -4d = 0

Add '-21.6' to each side of the equation.
21.6 + -21.6 + -4d = 0 + -21.6

Combine like terms: 21.6 + -21.6 = 0.0
0.0 + -4d = 0 + -21.6
-4d = 0 + -21.6

Combine like terms: 0 + -21.6 = -21.6
-4d = -21.6

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

Simplifying
d = 5.4