5d-3d-3=4.2

Solution for 5d-3d-3=4.2 equation:

Simplifying
5d + -3d + -3 = 4.2

Reorder the terms:
-3 + 5d + -3d = 4.2

Combine like terms: 5d + -3d = 2d
-3 + 2d = 4.2

Solving
-3 + 2d = 4.2

Solving for variable 'd'.

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

Add '3' to each side of the equation.
-3 + 3 + 2d = 4.2 + 3

Combine like terms: -3 + 3 = 0
0 + 2d = 4.2 + 3
2d = 4.2 + 3

Combine like terms: 4.2 + 3 = 7.2
2d = 7.2

Divide each side by '2'.
d = 3.6

Simplifying
d = 3.6