3(x-2)+x=42

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

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

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

Combine like terms: 3x + x = 4x
-6 + 4x = 42

Solving
-6 + 4x = 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 + 4x = 42 + 6

Combine like terms: -6 + 6 = 0
0 + 4x = 42 + 6
4x = 42 + 6

Combine like terms: 42 + 6 = 48
4x = 48

Divide each side by '4'.
x = 12

Simplifying
x = 12