42=4d+6d+6

Solution for 42=4d+6d+6 equation:

Simplifying
42 = 4d + 6d + 6

Reorder the terms:
42 = 6 + 4d + 6d

Combine like terms: 4d + 6d = 10d
42 = 6 + 10d

Solving
42 = 6 + 10d

Solving for variable 'd'.

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

Add '-10d' to each side of the equation.
42 + -10d = 6 + 10d + -10d

Combine like terms: 10d + -10d = 0
42 + -10d = 6 + 0
42 + -10d = 6

Add '-42' to each side of the equation.
42 + -42 + -10d = 6 + -42

Combine like terms: 42 + -42 = 0
0 + -10d = 6 + -42
-10d = 6 + -42

Combine like terms: 6 + -42 = -36
-10d = -36

Divide each side by '-10'.
d = 3.6

Simplifying
d = 3.6