cần gấp lắm ạ cảm ơn trc

Đáp án+Giải thích các bước giải:

`a)4(2-3x)-(5-x)>11-x`

`<=>8-12x-5+x>11-x`

`<=>3-11x>11-x`

`<=>3-11>11x-x`

`<=>-8>10x`

`<=>x<-4/5`

`b)2(3-x)-1,5(x-4)<3-x`

`<=>6-2x-1,5x+6<3-x`

`<=>12-3,5x<3-x`

`<=>12-3<3,5x-x`

`<=>9<2,5x`

`<=>x>3,6`

`c)(2x-1)/3<(x+6)/2`

`<=>2(2x-1)<3(x+6)`

`<=>4x-2<3x+18`

`<=>4x-3x<18+2`

`<=>x<20`

`d)(5(x-1))/6-1>=(2(x+1))/3`

`<=>(5x-5-6)/6>(2x+2)/3`

`<=>(5x-11)/6>(2x+2)/3`

`<=>5x-11>4x+4`

`<=>x>15`

`e)(2x+3)(2x-1)>4x(x+2)`

`<=>4x^2+4x-3>4x^2+8x`

`<=>8x-4x<-3`

`<=>4x<-3`

`<=>x<-3/4`

`f)5(x-1)-x(7-x)<x^2`

`<=>5x-5-7x+x^2<x^2`

`<=>-2x-5<0`

`<=>2x> -5`

`<=>x> -5/2`