(2*x)+(x-6)+x=42

Solution for (2*x)+(x-6)+x=42 equation:

Simplifying
(2x) + (x + -6) + x = 42

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

Remove parenthesis around (-6 + x)
(2x) + -6 + x + x = 42

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

Combine like terms: (2x) + x = 3x
-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