题目内容
| 解方程. 3x-
| x-(
| 2(x-7)=8.96. |
(1)3x-
=
,
3x-
+
=
+
,
3x÷3=1÷3,
x=
;
(2)x-(
+
)=
,
x-
=
,
x-
+
=
+
,
x=1
;
(3)2(x-7)=8.96,
2(x-7)÷2=8.96÷2,
x-7+7=4.48+7,
x=11.48.
| 3 |
| 4 |
| 1 |
| 4 |
3x-
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
3x÷3=1÷3,
x=
| 1 |
| 3 |
(2)x-(
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 2 |
x-
| 5 |
| 8 |
| 1 |
| 2 |
x-
| 5 |
| 8 |
| 5 |
| 8 |
| 1 |
| 2 |
| 5 |
| 8 |
x=1
| 1 |
| 8 |
(3)2(x-7)=8.96,
2(x-7)÷2=8.96÷2,
x-7+7=4.48+7,
x=11.48.
练习册系列答案
相关题目