Question

4-2分之1y小于等于2分之1y,3分之2y+4大于等于y

Answer 1

4-2分之1y≤2分之1y,两边同乘以2,得8-y≤y-y-y≤-8-2y≤-8y≥43分之2y+4≥y 两边同乘以3,得2y+4≥3y2y-3y≥-4-y≥-4y≤4 x-3（x-2)≤4,x-3x+6≤4-2x≤-2x≥14分之1-2x＜1-x两边同乘以4得,1-2x＜4-4x-2x+4x＜4-12x＜3...