-3n-3(n+2)=-42

Solution for -3n-3(n+2)=-42 equation:

Simplifying
-3n + -3(n + 2) = -42

Reorder the terms:
-3n + -3(2 + n) = -42
-3n + (2 * -3 + n * -3) = -42
-3n + (-6 + -3n) = -42

Reorder the terms:
-6 + -3n + -3n = -42

Combine like terms: -3n + -3n = -6n
-6 + -6n = -42

Solving
-6 + -6n = -42

Solving for variable 'n'.

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

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

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

Combine like terms: -42 + 6 = -36
-6n = -36

Divide each side by '-6'.
n = 6

Simplifying
n = 6