72=x+(x-6)

Solution for 72=x+(x-6) equation:

Simplifying
72 = x + (x + -6)

Reorder the terms:
72 = x + (-6 + x)

Remove parenthesis around (-6 + x)
72 = x + -6 + x

Reorder the terms:
72 = -6 + x + x

Combine like terms: x + x = 2x
72 = -6 + 2x

Solving
72 = -6 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
72 + -2x = -6 + 2x + -2x

Combine like terms: 2x + -2x = 0
72 + -2x = -6 + 0
72 + -2x = -6

Add '-72' to each side of the equation.
72 + -72 + -2x = -6 + -72

Combine like terms: 72 + -72 = 0
0 + -2x = -6 + -72
-2x = -6 + -72

Combine like terms: -6 + -72 = -78
-2x = -78

Divide each side by '-2'.
x = 39

Simplifying
x = 39