(1x-x)-(1+2x)=0

Solution for (1x-x)-(1+2x)=0 equation:

Simplifying
(1x + -1x) + -1(1 + 2x) = 0

Combine like terms: 1x + -1x = 0
(0) + -1(1 + 2x) = 0
0 + -1(1 + 2x) = 0
0 + (1 * -1 + 2x * -1) = 0
0 + (-1 + -2x) = 0

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

Solving
-1 + -2x = 0

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 = 0 + 1

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

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

Divide each side by '-2'.
x = -0.5

Simplifying
x = -0.5