题目内容
求未知数x.
①1.5x-0.8×35=32
②
:
=x:
.
①1.5x-0.8×35=32
②
| 1 |
| 8 |
| 1 |
| 4 |
| 5 |
| 6 |
(1)1.5x-0.8×35=32,
1.5x-28=32,
1.5x-28+28=32+28,
1.5x÷1.5=60÷1.5,
x=40,
(2)
:
=x:
,
x=
×
,
x÷
=
÷
,
x=
.
1.5x-28=32,
1.5x-28+28=32+28,
1.5x÷1.5=60÷1.5,
x=40,
(2)
| 1 |
| 8 |
| 1 |
| 4 |
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 8 |
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 4 |
| 5 |
| 48 |
| 1 |
| 4 |
x=
| 5 |
| 12 |
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