2(6d+3)=18-3(16-3)

Solution for 2(6d+3)=18-3(16-3) equation:

Simplifying
2(6d + 3) = 18 + -3(16 + -3)

Reorder the terms:
2(3 + 6d) = 18 + -3(16 + -3)
(3 * 2 + 6d * 2) = 18 + -3(16 + -3)
(6 + 12d) = 18 + -3(16 + -3)

Combine like terms: 16 + -3 = 13
6 + 12d = 18 + -3(13)

Multiply -3 * 13
6 + 12d = 18 + -39

Combine like terms: 18 + -39 = -21
6 + 12d = -21

Solving
6 + 12d = -21

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 + 12d = -21 + -6

Combine like terms: 6 + -6 = 0
0 + 12d = -21 + -6
12d = -21 + -6

Combine like terms: -21 + -6 = -27
12d = -27

Divide each side by '12'.
d = -2.25

Simplifying
d = -2.25