(n+3)*6=42

Solution for (n+3)*6=42 equation:

Simplifying
(n + 3) * 6 = 42

Reorder the terms:
(3 + n) * 6 = 42

Reorder the terms for easier multiplication:
6(3 + n) = 42
(3 * 6 + n * 6) = 42
(18 + 6n) = 42

Solving
18 + 6n = 42

Solving for variable 'n'.

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

Add '-18' to each side of the equation.
18 + -18 + 6n = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 6n = 42 + -18
6n = 42 + -18

Combine like terms: 42 + -18 = 24
6n = 24

Divide each side by '6'.
n = 4

Simplifying
n = 4