题目内容
求未知数x.
①个
x+8×0.5=个6
②x:个
=个4:3.6.
①个
| 个 |
| 3 |
②x:个
| 四 |
| 7 |
(s)s
x+8×0.5=s6,
s
x+4=s6,
s
x+4-4=s6-4,
s
x=sm,
s
x÷s
=sm÷s
,
x=sm×
,
x=9;
(m)x:s
=s4:4.6,
4.6x=
×s4,
4.6x=s8,
4.6x÷4.6=s8÷4.6,
x=5.
| s |
| 4 |
s
| s |
| 4 |
s
| s |
| 4 |
s
| s |
| 4 |
s
| s |
| 4 |
| s |
| 4 |
| s |
| 4 |
x=sm×
| 4 |
| 4 |
x=9;
(m)x:s
| m |
| 7 |
4.6x=
| 9 |
| 7 |
4.6x=s8,
4.6x÷4.6=s8÷4.6,
x=5.
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