解下列不等式组.①{5x-2>3(x+1),②{4(x-0.3)<x+3.8,1/2x-1 ≤7-3/2x; 5-1/3x>-1/4x+1
问题描述:
解下列不等式组.①{5x-2>3(x+1),②{4(x-0.3)<x+3.8,1/2x-1 ≤7-3/2x; 5-1/3x>-1/4x+1
答
1 x>5/2
2 x过程!15x-2>3x+32x>5x>5/2
24x-1.2
1/4x-1/3x>1-5-1/12x>-4x所以x