化简不等式 x-1+3x⼀2>-3 5x-12≤2(4x-3)②1-2(x-1)≤5 3x-2⼀2<x+1⼀2③-3(x-2)≥4-x 2x-5⼀3<x-1

2024-11-26 21:23:45
推荐回答(1个)
回答1:

x-1+3x/2>-3
解:2.5x﹥-2
x﹥-0.8
5x-12≤2(4x-3)
解:5x-12≤8x-6
3x≥6
x≥2
②1-2(x-1)≤5
解:1-2x+2≤5
2x≥-2
x≥-1
3x-2/2解:2x﹤3/2
x﹤3/4
③-3(x-2)≥4-x
解:-3x+6≥4-x
2x≤2
x≤1
2x-5/3解:x﹤5/3-1
x﹤2/3