题目内容
求未知数x.
5x+3x=48
x:
=
:4.
5x+3x=48
x:
| 3 |
| 8 |
| 2 |
| 3 |
(1)5x+3x=48,
8x=48,
8x÷8=48÷8,
x=6;
(2)x:
=
:4,
4x=
×
,
4x=
,
4x÷4=
÷4,
x=
.
8x=48,
8x÷8=48÷8,
x=6;
(2)x:
| 3 |
| 8 |
| 2 |
| 3 |
4x=
| 3 |
| 8 |
| 2 |
| 3 |
4x=
| 1 |
| 4 |
4x÷4=
| 1 |
| 4 |
x=
| 1 |
| 16 |
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