1.38=-0.2d+3.2

Solution for 1.38=-0.2d+3.2 equation:

Simplifying
1.38 = -0.2d + 3.2

Reorder the terms:
1.38 = 3.2 + -0.2d

Solving
1.38 = 3.2 + -0.2d

Solving for variable 'd'.

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

Add '0.2d' to each side of the equation.
1.38 + 0.2d = 3.2 + -0.2d + 0.2d

Combine like terms: -0.2d + 0.2d = 0.0
1.38 + 0.2d = 3.2 + 0.0
1.38 + 0.2d = 3.2

Add '-1.38' to each side of the equation.
1.38 + -1.38 + 0.2d = 3.2 + -1.38

Combine like terms: 1.38 + -1.38 = 0.00
0.00 + 0.2d = 3.2 + -1.38
0.2d = 3.2 + -1.38

Combine like terms: 3.2 + -1.38 = 1.82
0.2d = 1.82

Divide each side by '0.2'.
d = 9.1

Simplifying
d = 9.1