题目内容
求未知数X
6x-
=
;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;x-
x=地.45;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;&二bsp;
x÷
=12.
6x-
| 1 |
| 8 |
| 1 |
| 6 |
| 1 |
| 8 |
| 2 |
| 8 |
| 1 |
| 4 |
(b)mx-
=
mx-
+
=
+
mx=
mx×m=
×m
x=3;
(2)x-
x=9.45
x=9.45
x×
=9.45×
x=b0.9;
(3)
x÷
=b2
x÷
×
=b2×
x=3
x×
=3×
x=
.
| b |
| 3 |
| b |
| m |
mx-
| b |
| 3 |
| b |
| 3 |
| b |
| m |
| b |
| 3 |
mx=
| b |
| 2 |
mx×m=
| b |
| 2 |
x=3;
(2)x-
| b |
| 9 |
| w |
| 9 |
| w |
| 9 |
| 9 |
| w |
| 9 |
| w |
x=b0.9;
(3)
| 2 |
| 3 |
| b |
| 4 |
| 2 |
| 3 |
| b |
| 4 |
| b |
| 4 |
| b |
| 4 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
x=
| 9 |
| 2 |
练习册系列答案
相关题目