6+3(4d+8)=54

Solution for 6+3(4d+8)=54 equation:

Simplifying
6 + 3(4d + 8) = 54

Reorder the terms:
6 + 3(8 + 4d) = 54
6 + (8 * 3 + 4d * 3) = 54
6 + (24 + 12d) = 54

Combine like terms: 6 + 24 = 30
30 + 12d = 54

Solving
30 + 12d = 54

Solving for variable 'd'.

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

Add '-30' to each side of the equation.
30 + -30 + 12d = 54 + -30

Combine like terms: 30 + -30 = 0
0 + 12d = 54 + -30
12d = 54 + -30

Combine like terms: 54 + -30 = 24
12d = 24

Divide each side by '12'.
d = 2

Simplifying
d = 2