3.2=15.75+3.2d

Solution for 3.2=15.75+3.2d equation:

Simplifying
3.2 = 15.75 + 3.2d

Solving
3.2 = 15.75 + 3.2d

Solving for variable 'd'.

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

Add '-3.2d' to each side of the equation.
3.2 + -3.2d = 15.75 + 3.2d + -3.2d

Combine like terms: 3.2d + -3.2d = 0.0
3.2 + -3.2d = 15.75 + 0.0
3.2 + -3.2d = 15.75

Add '-3.2' to each side of the equation.
3.2 + -3.2 + -3.2d = 15.75 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + -3.2d = 15.75 + -3.2
-3.2d = 15.75 + -3.2

Combine like terms: 15.75 + -3.2 = 12.55
-3.2d = 12.55

Divide each side by '-3.2'.
d = -3.921875

Simplifying
d = -3.921875