题目内容
求未知数X.
| x-16×3=102 |
|
| 1.2x+4.6=6.4. |
根据题意可得:
(1)x-16×3=102,
x-48=102,
x-48+48=102+48,
x=150;
(2)
:x=
:9,
x=9×
,
x=6,
x÷
=6÷
,
x=24;
(3)
=x:10,
4.5x=0.8×10,
4.5x=8;
4.5x÷4.5=8÷4.5;
x=
;
(4)1.2x+4.6=6.4,
1.2x+4.6-4.6=6.4-4.6,
1.2x=1.8,
1.2x÷1.2=1.8÷1.2,
x=1.5.
(1)x-16×3=102,
x-48=102,
x-48+48=102+48,
x=150;
(2)
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
x=24;
(3)
| 0.8 |
| 4.5 |
4.5x=0.8×10,
4.5x=8;
4.5x÷4.5=8÷4.5;
x=
| 16 |
| 9 |
(4)1.2x+4.6=6.4,
1.2x+4.6-4.6=6.4-4.6,
1.2x=1.8,
1.2x÷1.2=1.8÷1.2,
x=1.5.
练习册系列答案
相关题目