Question

求不等式：x-8<3x-2 7-x>=2x-2 x-2>2x-7 x+2>11-2x

还有16x-11>12x+1,2x>x-1,2x<3x，3x-4>=2+5x

Answer 1

x-8<3x-2
x-3x＜8-2
-2x＜6
x＞-3

7-x>=2x-2
-x-2x≥-7-2
-3x≥-9
x≤3

x-2>2x-7
x-2x＞-7+2
-x＞-5
x＜5

x+2>11-2x
x+2x＞11-2
3x＞9
x＞3

16x-11>12x+1
4x＞12
x＞3

,2x>x-1,
x＞-1

2x<3x，
x＞0

3x-4>=2+5x
3x-5x≥6
-2x≥6
x≤-3

Answer 2

3x-x>-8+2
2x>-6
x>-3

7-x>=2x-2
2x+x≤7+2
3x≤9
x≤3

x-2>2x-7
2x-x<-2+7
x<5

x+2>11-2x
x+2x>11-2
3x>9
x>3

Answer 3

x-8<3x-2，
-2x<6
x>-3

7-x>=2x-2，
-3x≥-9
x≤3

x-2>2x-7，
-x>-5
x<5

x+2>11-2x
3x>9
x>3

Answer 4

x-8<3x-2
-2x<6
x>-3

7-x>=2x-2
-3x>=-9
x<=3

x-2>2x-7
-x>-5
x<5

x+2>11-2x
3x>9
x>3