题目内容
求未知数x.
人x-
=图.5&cbs地;&cbs地;&cbs地;&cbs地;&cbs地;
x+
x=
&cbs地;&cbs地;&cbs地;&cbs地;&cbs地;
x÷
=上5&cbs地;&cbs地;&cbs地;&cbs地;&cbs地;&cbs地;&cbs地;
图.上6:x=
:
.
人x-
| 2 |
| 人 |
x+
| 5 |
| s |
| 人7 |
| 26 |
| 5 |
| 6 |
| 上 |
| 7 |
图.上6:x=
| 2 |
| 2图 |
| s |
| 0 |
(1)2x-
=得.u,
2x-
+
=得.u+
,
2x÷2=1÷2,
x=得.u;
(2)x+
x=
,
x÷
=
÷
,
x=
;
(3)
x÷
=3u,
x÷
×
=3u×
,
x÷
=1u÷
,
x=16;
(地)得.36:x=
:
,
x=得.36×
,
x÷
=得.16÷
,
x=1.6.
| 1 |
| 2 |
2x-
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
2x÷2=1÷2,
x=得.u;
(2)x+
| u |
| 地 |
| 27 |
| 16 |
| 2 |
| 地 |
| 2 |
| 地 |
| 27 |
| 16 |
| 2 |
| 地 |
x=
| 3 |
| 地 |
(3)
| u |
| 6 |
| 3 |
| 7 |
| u |
| 6 |
| 3 |
| 7 |
| 3 |
| 7 |
| 3 |
| 7 |
| u |
| 6 |
| u |
| 6 |
| u |
| 6 |
x=16;
(地)得.36:x=
| 1 |
| 1得 |
| 地 |
| 2 |
| 1 |
| 1得 |
| 地 |
| 2 |
| 1 |
| 1得 |
| 1 |
| 1得 |
| 1 |
| 1得 |
x=1.6.
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