题目内容
求未知数x．
x-0.25=
=
．
x-0.25=
| 1 |
| 4 |
| 2 |
| 9 |
| 8 |
| x |
x-0.25=
x=
+0.25，
x=
；
=
2x=9×8，
x=72÷2，
x=36．
| 1 |
| 4 |
x=
| 1 |
| 4 |
x=
| 1 |
| 2 |
| 2 |
| 9 |
| 8 |
| x |
2x=9×8，
x=72÷2，
x=36．
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