题目内容
求X的值.
2X+3×0.9=24.7
X-
X=
.
2X+3×0.9=24.7
X-
| 2 |
| 3 |
| 1 |
| 3 |
(1)2X+3×0.9=24.7,
2X+2.7=24.7,
2X+2.7-2.7=24.7-2.7,
2X=22,
2X÷2=22÷2,
X=11;
(2)X-
X=
,
X=
,
X×3=
×3,
X=1.
2X+2.7=24.7,
2X+2.7-2.7=24.7-2.7,
2X=22,
2X÷2=22÷2,
X=11;
(2)X-
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
X=1.
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