题目内容
解方程.
4x-2x=3×18
(1-25%)x=24
:
=16:x.
4x-2x=3×18
(1-25%)x=24
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(1)4x-2x=3×18,
2x=3×18,
x=3×18÷2,
x=3×9,
x=27;
(2)(1-25%)x=24,
x=24÷75%,
x=32;
(3)
:
=16:x,
x=
×16,
x=
×16×4,
x=
,
x=5
.
2x=3×18,
x=3×18÷2,
x=3×9,
x=27;
(2)(1-25%)x=24,
x=24÷75%,
x=32;
(3)
| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| 4 |
| 1 |
| 12 |
x=
| 1 |
| 12 |
x=
| 16 |
| 3 |
x=5
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| 3 |
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