6=2.2+d

Solution for 6=2.2+d equation:

Simplifying
6 = 2.2 + d

Solving
6 = 2.2 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
6 + -1d = 2.2 + d + -1d

Combine like terms: d + -1d = 0
6 + -1d = 2.2 + 0
6 + -1d = 2.2

Add '-6' to each side of the equation.
6 + -6 + -1d = 2.2 + -6

Combine like terms: 6 + -6 = 0
0 + -1d = 2.2 + -6
-1d = 2.2 + -6

Combine like terms: 2.2 + -6 = -3.8
-1d = -3.8

Divide each side by '-1'.
d = 3.8

Simplifying
d = 3.8