解不等式组 x-3(x-2)≥4,2x-1⼀5<x+1⼀2

2024-12-24 18:04:08
推荐回答(3个)
回答1:

x-3(x-2)≥4
解:x-3x+6≥4
-2x≥-2
x≤1

回答2:

解:x-3x+6≥4,-2x≥-2,x≤1
(2)式两边都乘以10,20x-2<10x+5,10x<7,x<7/10
所以,不等式的解集是x<7/10

回答3:

由x-3(x-2)≥4 解得x≤1,由2x-1/5<x+1/2,解得X<7/10,然后取交集的x≤1