123=-9d+6

Solution for 123=-9d+6 equation:

Simplifying
123 = -9d + 6

Reorder the terms:
123 = 6 + -9d

Solving
123 = 6 + -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.
123 + 9d = 6 + -9d + 9d

Combine like terms: -9d + 9d = 0
123 + 9d = 6 + 0
123 + 9d = 6

Add '-123' to each side of the equation.
123 + -123 + 9d = 6 + -123

Combine like terms: 123 + -123 = 0
0 + 9d = 6 + -123
9d = 6 + -123

Combine like terms: 6 + -123 = -117
9d = -117

Divide each side by '9'.
d = -13

Simplifying
d = -13