【简答题】解下列不等式(组) (1) x- x+2 2 < 2-x 3 (2) 3-5x>x-2(2x-1) 3x-2 4 >2.5- x 2 .
【简答题】Read and complete. 再读邀请信,帮Mr Smith补全备忘录。 Dear Mr Smith, I’m writing on behalf of the English Department to invite you to give us a lecture in Changjiang Teacher’s College. We know that you are an expe...
【简答题】解下列不等式: (1)5x-12≤2(4x-3); (2) x-3 2 ≥x-2.
【简答题】解下列不等式或不等式组,并把解集在数轴上表示出来 (1)5(x-2)>4(2x-1) (2) x 2 - x 3 ≤1 (3) 2x-1 3 - 5x+1 2 ≤1 5x-1<3(x+1) (4) 2x-7<3(1-x) 4 3 x+3≤6- 2x 3 .
【简答题】解下列不等式或不等式组,并把它们的解集分别表示在数轴上: (1) x 2 ≥ x-1 3 (2) 1+2x>3+x 5x<4x-1 .