解下列不等式:1.x-2<2(x-1),x⼀3≤4-x;2.2x-1<x+1,x+8<4x-1

要过程,答案一定要正确
2025-01-08 06:40:03
推荐回答(2个)
回答1:

x-2<2(x-1)
X-2<2X-2
X-2X<-2+2
-X<0
X>0

x/3≤4-x
不等式两边同时乘以3后得到
X<=12-3X
X+3X<=12
4X<=12
X<-=3
如果是求不等式组的解的话,应该是02x-1<x+1
2X-X<1+1
X<2

x+8<4x-1
X-4X<-1-8
-3X<-9
X>3
如果是求不等式组的解的话,应该是2不懂的欢迎追问,如有帮助请采纳,谢谢!

回答2:

x-2<2(x-1)
x-2<2x-2
-x<0
x>0
x/3≤4-x
x≤12-3x
4x≤12
x≤3

2x-1<x+1
x<2
x+8<4x-1
-3x<-9
x>3