题目内容
求未知数.
|
|
x÷0.4=0.5÷
|
(1)
÷
=x÷14,
x÷14=
,
x÷14×14=
×14,
x=4;
(2)
=
,
9x=27×8,
9x÷9=27×8÷9,
x=24;
(3)x÷0.4=0.5÷
,
x÷0.4=
,
x÷0.4×0.4=
×0.4,
x=
.
| 1 |
| 3 |
| 7 |
| 6 |
x÷14=
| 2 |
| 7 |
x÷14×14=
| 2 |
| 7 |
x=4;
(2)
| x |
| 27 |
| 8 |
| 9 |
9x=27×8,
9x÷9=27×8÷9,
x=24;
(3)x÷0.4=0.5÷
| 3 |
| 5 |
x÷0.4=
| 5 |
| 6 |
x÷0.4×0.4=
| 5 |
| 6 |
x=
| 1 |
| 3 |
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