54=15.75+3.2d

Solution for 54=15.75+3.2d equation:

Simplifying
54 = 15.75 + 3.2d

Solving
54 = 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.
54 + -3.2d = 15.75 + 3.2d + -3.2d

Combine like terms: 3.2d + -3.2d = 0.0
54 + -3.2d = 15.75 + 0.0
54 + -3.2d = 15.75

Add '-54' to each side of the equation.
54 + -54 + -3.2d = 15.75 + -54

Combine like terms: 54 + -54 = 0
0 + -3.2d = 15.75 + -54
-3.2d = 15.75 + -54

Combine like terms: 15.75 + -54 = -38.25
-3.2d = -38.25

Divide each side by '-3.2'.
d = 11.953125

Simplifying
d = 11.953125