题目内容
求下列各式中未知数x的值.
| 36:x=
| 0.75x+
|
(1)
=
,
0.3x=2.4×0.5,
0.3x÷0.3=1.2÷0.3,
x=4;
(2)36:x=
:0.5,
x=36×0.5,
x÷
=18÷
,
x=12;
(3)0.75x+
x=3.3,
x=3.3,
x÷
=3.3÷
,
x=2.4.
| 2.4 |
| 0.3 |
| x |
| 0.5 |
0.3x=2.4×0.5,
0.3x÷0.3=1.2÷0.3,
x=4;
(2)36:x=
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
x=12;
(3)0.75x+
| 5 |
| 8 |
| 11 |
| 8 |
| 11 |
| 8 |
| 11 |
| 8 |
| 11 |
| 8 |
x=2.4.
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