69=x+(x-6)

Solution for 69=x+(x-6) equation:

Simplifying
69 = x + (x + -6)

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

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

Reorder the terms:
69 = -6 + x + x

Combine like terms: x + x = 2x
69 = -6 + 2x

Solving
69 = -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.
69 + -2x = -6 + 2x + -2x

Combine like terms: 2x + -2x = 0
69 + -2x = -6 + 0
69 + -2x = -6

Add '-69' to each side of the equation.
69 + -69 + -2x = -6 + -69

Combine like terms: 69 + -69 = 0
0 + -2x = -6 + -69
-2x = -6 + -69

Combine like terms: -6 + -69 = -75
-2x = -75

Divide each side by '-2'.
x = 37.5

Simplifying
x = 37.5