题目内容
求x的值.
(1)x-
x=
(2)15x÷4=60
(3)5:
=1.25:x.
(1)x-
| 1 |
| 4 |
| 3 |
| 8 |
(2)15x÷4=60
(3)5:
| 1 |
| 2 |
(1)x-
x=
,
x=
,
x÷
=
÷
,
x=
;
(2)15x÷4=60
15x÷4×4=60×4,
15x=240,
15x÷15=240÷15,
x=16,
(3)5:
=1.25:x.
5x=
×1.25,
5x÷5=
×1.25÷5,
x=
.
| 1 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
x=
| 1 |
| 2 |
(2)15x÷4=60
15x÷4×4=60×4,
15x=240,
15x÷15=240÷15,
x=16,
(3)5:
| 1 |
| 2 |
5x=
| 1 |
| 2 |
5x÷5=
| 1 |
| 2 |
x=
| 1 |
| 8 |
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