题目内容
解方程
0.8x-
=0.53
x+
x=92.
0.8x-
| 3 |
| 4 |
| 5 |
| 7 |
| 3 |
| 5 |
(1)0.8x-
=0.53
0.8x-
+
=0.53+
0.8x=1.28
0.8x÷0.8=1.28÷0.8
x=1.6
(2)
x+
x=92
x=92
x×
=92×
x=70
| 3 |
| 4 |
0.8x-
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
0.8x=1.28
0.8x÷0.8=1.28÷0.8
x=1.6
(2)
| 5 |
| 7 |
| 3 |
| 5 |
| 46 |
| 35 |
| 46 |
| 35 |
| 35 |
| 46 |
| 35 |
| 46 |
x=70
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