7d-d+2d-6-3d=0

Solution for 7d-d+2d-6-3d=0 equation:

Simplifying
7d + -1d + 2d + -6 + -3d = 0

Reorder the terms:
-6 + 7d + -1d + 2d + -3d = 0

Combine like terms: 7d + -1d = 6d
-6 + 6d + 2d + -3d = 0

Combine like terms: 6d + 2d = 8d
-6 + 8d + -3d = 0

Combine like terms: 8d + -3d = 5d
-6 + 5d = 0

Solving
-6 + 5d = 0

Solving for variable 'd'.

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

Add '6' to each side of the equation.
-6 + 6 + 5d = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 5d = 0 + 6
5d = 0 + 6

Combine like terms: 0 + 6 = 6
5d = 6

Divide each side by '5'.
d = 1.2

Simplifying
d = 1.2