x-(1-x)=3

Solution for x-(1-x)=3 equation:

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

Reorder the terms:
-1 + x + 1x = 3

Combine like terms: x + 1x = 2x
-1 + 2x = 3

Solving
-1 + 2x = 3

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 2x = 3 + 1

Combine like terms: -1 + 1 = 0
0 + 2x = 3 + 1
2x = 3 + 1

Combine like terms: 3 + 1 = 4
2x = 4

Divide each side by '2'.
x = 2

Simplifying
x = 2