x+(x-6)=39

Solution for x+(x-6)=39 equation:

Simplifying
x + (x + -6) = 39

Reorder the terms:
x + (-6 + x) = 39

Remove parenthesis around (-6 + x)
x + -6 + x = 39

Reorder the terms:
-6 + x + x = 39

Combine like terms: x + x = 2x
-6 + 2x = 39

Solving
-6 + 2x = 39

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 + 2x = 39 + 6

Combine like terms: -6 + 6 = 0
0 + 2x = 39 + 6
2x = 39 + 6

Combine like terms: 39 + 6 = 45
2x = 45

Divide each side by '2'.
x = 22.5

Simplifying
x = 22.5