3y-2＜1+4y 2-3(y+2)≥2(y-1)
问题描述：
3y-2＜1+4y 2-3(y+2)≥2(y-1)
答
3y-4y ＜1+2,y ＜3
2-3y-6≥2y-2,2-6+2≥2y+3y,-2≥5y,-0.2≥y
答
3y-2＜1+4y 2-3(y+2)≥2(y-1)
3y-4y