5.5d-15.81=7.2d

Solution for 5.5d-15.81=7.2d equation:

Simplifying
5.5d + -15.81 = 7.2d

Reorder the terms:
-15.81 + 5.5d = 7.2d

Solving
-15.81 + 5.5d = 7.2d

Solving for variable 'd'.

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

Add '-7.2d' to each side of the equation.
-15.81 + 5.5d + -7.2d = 7.2d + -7.2d

Combine like terms: 5.5d + -7.2d = -1.7d
-15.81 + -1.7d = 7.2d + -7.2d

Combine like terms: 7.2d + -7.2d = 0.0
-15.81 + -1.7d = 0.0

Add '15.81' to each side of the equation.
-15.81 + 15.81 + -1.7d = 0.0 + 15.81

Combine like terms: -15.81 + 15.81 = 0.00
0.00 + -1.7d = 0.0 + 15.81
-1.7d = 0.0 + 15.81

Combine like terms: 0.0 + 15.81 = 15.81
-1.7d = 15.81

Divide each side by '-1.7'.
d = -9.3

Simplifying
d = -9.3