题目内容
| 求未知数x. 36×
|
|
(1)36×
+8x=89,
9+8x=89,
9+8x-9=89-9,
8x÷8=80÷8,
x=10;
(2)
:x=3:12,
3x=12×
,
3x÷3=9÷3,
x=3.
| 1 |
| 4 |
9+8x=89,
9+8x-9=89-9,
8x÷8=80÷8,
x=10;
(2)
| 3 |
| 4 |
3x=12×
| 3 |
| 4 |
3x÷3=9÷3,
x=3.
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题目内容
| 求未知数x. 36×
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