下面各题怎样简便就怎样算(求未知数x)
9÷[3.2×(1﹣)+3] :2x=1:2 29×+×114
999+99+9 0.625×7.3×1﹣1+3.7﹣2 1+2+3+4+5+6
(﹣+)÷.
下面各题怎样简便就怎样算(求未知数x)
9÷[3.2×(1﹣)+3] :2x=1:2 29×+×114
999+99+9 0.625×7.3×1﹣1+3.7﹣2 1+2+3+4+5+6
(﹣+)÷.