题目内容
2x-3.7×5=1
3
x+4=4.7.
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| 2 |
3
| 1 |
| 2 |
(1)2x-3.7×5=1
,
2x-18.5=1
,
2x-18.5+18.5=1
+18.5,
2x÷2=20÷2,
x=10;
(2)3
x+4=4.7,
3
x+4-4=4.7-4,
3
x÷3
=0.7÷3
,
x=0.7÷3.5,
x=0.2.
| 1 |
| 2 |
2x-18.5=1
| 1 |
| 2 |
2x-18.5+18.5=1
| 1 |
| 2 |
2x÷2=20÷2,
x=10;
(2)3
| 1 |
| 2 |
3
| 1 |
| 2 |
3
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=0.7÷3.5,
x=0.2.
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