(3-(-3+9))=x

Solution for (3-(-3+9))=x equation:

Simplifying
(3 + -1(-3 + 9)) = x

Combine like terms: -3 + 9 = 6
(3 + -1(6)) = x

Multiply -1 * 6
(3 + -6) = x

Combine like terms: 3 + -6 = -3
(-3) = x
-3 = x

Solving
-3 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-3 + -1x = x + -1x

Combine like terms: x + -1x = 0
-3 + -1x = 0

Add '3' to each side of the equation.
-3 + 3 + -1x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = 0 + 3
-1x = 0 + 3

Combine like terms: 0 + 3 = 3
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3