题目内容
4x=
| x÷9=
| 3x+2x=
| ||||||||
|
|
|
(1)4x=
4x÷4=
÷4
x=
;
(2)x÷9=
x÷9×9=
×9
x=
;
(3)3x+2x=
5x=
5x÷5=
÷5
x=
;
(4)
x+x=
x=
x×
=
×
x=
;
(5)
x=27
x×
=27×
x=72;
(6)
x-8=37
x-8+8=37+8
x=45
x×
=45×
x=54.
| 2 |
| 3 |
4x÷4=
| 2 |
| 3 |
x=
| 1 |
| 6 |
(2)x÷9=
| 4 |
| 5 |
x÷9×9=
| 4 |
| 5 |
x=
| 36 |
| 5 |
(3)3x+2x=
| 5 |
| 7 |
5x=
| 5 |
| 7 |
5x÷5=
| 5 |
| 7 |
x=
| 1 |
| 7 |
(4)
| 1 |
| 5 |
| 10 |
| 13 |
| 6 |
| 5 |
| 10 |
| 13 |
| 6 |
| 5 |
| 5 |
| 6 |
| 10 |
| 13 |
| 5 |
| 6 |
x=
| 25 |
| 39 |
(5)
| 3 |
| 8 |
| 3 |
| 8 |
| 8 |
| 3 |
| 8 |
| 3 |
x=72;
(6)
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 6 |
| 5 |
| 6 |
| 5 |
x=54.
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