题目内容
(1)
×
-2x=
(2)3.2x+
=6.65
(3)
:x=
:6.
| 7 |
| 9 |
| 3 |
| 14 |
| 1 |
| 8 |
(2)3.2x+
| 1 |
| 4 |
(3)
| 4 |
| 7 |
| 3 |
| 5 |
(1)
×
-2x=
,
-2x=
,
2x=
-
,
2x÷2=
÷2,
x=
;
(2)3.2x+
=6.65,
3.2x+
-
=6.65-
;
3.2x÷3.2=6.4÷3.2,
x=2;
(3)
:x=
:6,
x=
×6,
x÷
=
÷
,
x=5
.
| 7 |
| 9 |
| 3 |
| 14 |
| 1 |
| 8 |
| 1 |
| 6 |
| 1 |
| 8 |
2x=
| 1 |
| 6 |
| 1 |
| 8 |
2x÷2=
| 1 |
| 24 |
x=
| 1 |
| 48 |
(2)3.2x+
| 1 |
| 4 |
3.2x+
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
3.2x÷3.2=6.4÷3.2,
x=2;
(3)
| 4 |
| 7 |
| 3 |
| 5 |
| 3 |
| 5 |
| 4 |
| 7 |
| 3 |
| 5 |
| 3 |
| 5 |
| 24 |
| 7 |
| 3 |
| 5 |
x=5
| 5 |
| 7 |
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