3.2(d-6-5)=28.8

Solution for 3.2(d-6-5)=28.8 equation:

Simplifying
3.2(d + -6 + -5) = 28.8

Reorder the terms:
3.2(-6 + -5 + d) = 28.8

Combine like terms: -6 + -5 = -11
3.2(-11 + d) = 28.8
(-11 * 3.2 + d * 3.2) = 28.8
(-35.2 + 3.2d) = 28.8

Solving
-35.2 + 3.2d = 28.8

Solving for variable 'd'.

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

Add '35.2' to each side of the equation.
-35.2 + 35.2 + 3.2d = 28.8 + 35.2

Combine like terms: -35.2 + 35.2 = 0.0
0.0 + 3.2d = 28.8 + 35.2
3.2d = 28.8 + 35.2

Combine like terms: 28.8 + 35.2 = 64
3.2d = 64

Divide each side by '3.2'.
d = 20

Simplifying
d = 20