7d-d+5d+6-4d=0

Solution for 7d-d+5d+6-4d=0 equation:

Simplifying
7d + -1d + 5d + 6 + -4d = 0

Reorder the terms:
6 + 7d + -1d + 5d + -4d = 0

Combine like terms: 7d + -1d = 6d
6 + 6d + 5d + -4d = 0

Combine like terms: 6d + 5d = 11d
6 + 11d + -4d = 0

Combine like terms: 11d + -4d = 7d
6 + 7d = 0

Solving
6 + 7d = 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 + 7d = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 7d = 0 + -6
7d = 0 + -6

Combine like terms: 0 + -6 = -6
7d = -6

Divide each side by '7'.
d = -0.8571428571

Simplifying
d = -0.8571428571