X+(x-6)=12

Solution for X+(x-6)=12 equation:

Simplifying
X + (x + -6) = 12

Reorder the terms:
X + (-6 + x) = 12

Remove parenthesis around (-6 + x)
X + -6 + x = 12

Reorder the terms:
-6 + X + x = 12

Solving
-6 + X + x = 12

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 + X + 6 + x = 12 + 6

Reorder the terms:
-6 + 6 + X + x = 12 + 6

Combine like terms: -6 + 6 = 0
0 + X + x = 12 + 6
X + x = 12 + 6

Combine like terms: 12 + 6 = 18
X + x = 18

Add '-1x' to each side of the equation.
X + x + -1x = 18 + -1x

Combine like terms: x + -1x = 0
X + 0 = 18 + -1x
X = 18 + -1x

Simplifying
X = 18 + -1x