解不等式:3X-2≥1/2X+19(0.5x-1)
问题描述:
解不等式:3X-2≥1/2X+19(0.5x-1)
答
3X-2≥1/2X+1
(5/2)X≥3
X≥6/5
9(0.5x-1)<2X-6.5
4.5x-9<2X-6.5
2.5x<2.5
x<1