题目内容
求未知数x.
x+
x=
x-
x=
(
+1)x=
.
| 2 |
| 3 |
| 1 |
| 5 |
| 26 |
| 35 |
x-
| 4 |
| 9 |
| 8 |
| 15 |
(
| 3 |
| 4 |
| 63 |
| 100 |
(1)
x+
x=
x=
x×
=
×
x=
(2)x-
x=
x=
x×
=
×
x=
(3)(
+1)x=
x=
x×
=
×
x=
| 2 |
| 3 |
| 1 |
| 5 |
| 26 |
| 35 |
| 13 |
| 15 |
| 26 |
| 35 |
| 13 |
| 15 |
| 15 |
| 13 |
| 26 |
| 35 |
| 15 |
| 13 |
x=
| 6 |
| 7 |
(2)x-
| 4 |
| 9 |
| 8 |
| 15 |
| 5 |
| 9 |
| 8 |
| 15 |
| 5 |
| 9 |
| 9 |
| 5 |
| 8 |
| 15 |
| 9 |
| 5 |
x=
| 24 |
| 25 |
(3)(
| 3 |
| 4 |
| 63 |
| 100 |
| 7 |
| 4 |
| 63 |
| 100 |
| 7 |
| 4 |
| 4 |
| 7 |
| 63 |
| 100 |
| 4 |
| 7 |
x=
| 9 |
| 25 |
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