解下列不等式组(要过程)(1)-2<3x-5≤4; ⑵{3x+2≥5x-6,3-2x≥2x;﹙3﹚﹛5x+4<2﹙x-1﹚,2﹙x-1﹚>3﹙x+1﹚⑷2-x>2x+8,1/2x-2/3x≥2-x/3+1

问题描述:

解下列不等式组(要过程)
(1)-2<3x-5≤4; ⑵{3x+2≥5x-6,3-2x≥2x;
﹙3﹚﹛5x+4<2﹙x-1﹚,2﹙x-1﹚>3﹙x+1﹚
⑷2-x>2x+8,1/2x-2/3x≥2-x/3+1

﹛1+2x>3+x,5x≤4x-1

)-2<3x-5≤4; -2+5﹤3X≤4+53﹤3X≤9∴此不等式组的解集为:1﹤X≤3⑵{3x+2≥5x-6①,3-2x≥2x②;解不等式①得:X≤4解不等式②得:X≤3/4∴此不等式组的解集为:X≤3/4﹙3﹚﹛5x+4<2﹙x-1﹚①,2﹙x-1﹚>3﹙x+...