(1-[-99])-(-1+99)=x

Solution for (1-[-99])-(-1+99)=x equation:

Simplifying
(1 + -1[-99]) + -1(-1 + 99) = x

Multiply -1 * -99
(1 + 99) + -1(-1 + 99) = x

Combine like terms: 1 + 99 = 100
(100) + -1(-1 + 99) = x
100 + -1(-1 + 99) = x

Combine like terms: -1 + 99 = 98
100 + -1(98) = x

Multiply -1 * 98
100 + -98 = x

Combine like terms: 100 + -98 = 2
2 = x

Solving
2 = 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.
2 + -1x = x + -1x

Combine like terms: x + -1x = 0
2 + -1x = 0

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2