化简不等式 ①3x-1≤x-2 13x+4>x-2②4(x-1)≤x+5 7+2x≤3(x+2) ③3(x-1)>2(x+1) 4(x-2)>5(x+1)-6
问题描述:
化简不等式 ①3x-1≤x-2 13x+4>x-2②4(x-1)≤x+5 7+2x≤3(x+2) ③3(x-1)>2(x+1) 4(x-2)>5(x+1)-6
答
化简不等式 ①3x-1≤x-2 13x+4>x-2
x≤-0.5 x>-0.5
②4(x-1)≤x+5 7+2x≤3(x+2)
x≤3 1≤x
③3(x-1)>2(x+1) 4(x-2)>5(x+1)-6
x>5 x