x- 1 & gt； Three times, that is, two times

Because the premise is x>= 1, there is no solution.

When x

1-x & gt； 3x, that is, x < 1/4.

Because the premise is X.

Combining the above two situations, x < 1/4.

(2) Taking-1/3 and 1/2 as the interval dividing points, the integer axis is divided into three intervals, so that the absolute value sign is removed and discussed separately.