12d+6=9d

Solution for 12d+6=9d equation:

Simplifying
12d + 6 = 9d

Reorder the terms:
6 + 12d = 9d

Solving
6 + 12d = 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
6 + 12d + -9d = 9d + -9d

Combine like terms: 12d + -9d = 3d
6 + 3d = 9d + -9d

Combine like terms: 9d + -9d = 0
6 + 3d = 0

Add '-6' to each side of the equation.
6 + -6 + 3d = 0 + -6

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

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

Divide each side by '3'.
d = -2

Simplifying
d = -2