3(x+1)+3x+3=42

Solution for 3(x+1)+3x+3=42 equation:

Simplifying
3(x + 1) + 3x + 3 = 42

Reorder the terms:
3(1 + x) + 3x + 3 = 42
(1 * 3 + x * 3) + 3x + 3 = 42
(3 + 3x) + 3x + 3 = 42

Reorder the terms:
3 + 3 + 3x + 3x = 42

Combine like terms: 3 + 3 = 6
6 + 3x + 3x = 42

Combine like terms: 3x + 3x = 6x
6 + 6x = 42

Solving
6 + 6x = 42

Solving for variable 'x'.

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

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

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

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

Divide each side by '6'.
x = 6

Simplifying
x = 6