help me please

- (1 - x) > 2x - 1

- 1 + x > 2x - 1 | - 2x + 1
- x > 0 | . -1

x < 0
 

You can treat the ">" as an equal sign, and then apply algebra.

$-(1-x)>2x-1$

Expand the brackets on the left side.

$-1+x>2x-1$

Add 1 to each side.

$x>2x$

Minus x from each side.

$0>x$

x must be less than 0