Question

1-2x分之3-4x小于等于1 变形为2x-1分之2x-2小于等于0 这是怎么变的哦?

Answer 1

1-2x分之3-4x小于等于1

(3-4x)/(1-2x)≤1

(3-4x)/(1-2x)-1≤0

(3-4x-1+2x)/(1-2x)≤0

(2-2x)/(1-2x)≤0

(2x-2)/(2x-1)≤0

即

2x-1分之2x-2小于等于0