2(d+3)=4d-12

Solution for 2(d+3)=4d-12 equation:

Simplifying
2(d + 3) = 4d + -12

Reorder the terms:
2(3 + d) = 4d + -12
(3 * 2 + d * 2) = 4d + -12
(6 + 2d) = 4d + -12

Reorder the terms:
6 + 2d = -12 + 4d

Solving
6 + 2d = -12 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
6 + 2d + -4d = -12 + 4d + -4d

Combine like terms: 2d + -4d = -2d
6 + -2d = -12 + 4d + -4d

Combine like terms: 4d + -4d = 0
6 + -2d = -12 + 0
6 + -2d = -12

Add '-6' to each side of the equation.
6 + -6 + -2d = -12 + -6

Combine like terms: 6 + -6 = 0
0 + -2d = -12 + -6
-2d = -12 + -6

Combine like terms: -12 + -6 = -18
-2d = -18

Divide each side by '-2'.
d = 9

Simplifying
d = 9