(3r+6)-d=

Solution for (3r+6)-d= equation:

Simplifying
(3r + 6) + -1d = 0

Reorder the terms:
(6 + 3r) + -1d = 0

Remove parenthesis around (6 + 3r)
6 + 3r + -1d = 0

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

Solving
6 + -1d + 3r = 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 + -1d + -6 + 3r = 0 + -6

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

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

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

Add '-3r' to each side of the equation.
-1d + 3r + -3r = -6 + -3r

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

Divide each side by '-1'.
d = 6 + 3r

Simplifying
d = 6 + 3r