题目内容
| 解方程. 4X+3=11 | X-
|
|
4x+3=11,
4x+3-3=11-3,
4x=8,
4x÷4=8÷4,
x=2;
(2)x-
x=15,
x(1-
)=15,
x=15,
x÷
=15÷
,
x=40;
(3)
+2x=
,
+2x-
=
-
,
2x=
,
2x÷2=
÷2,
x=
.
4x+3-3=11-3,
4x=8,
4x÷4=8÷4,
x=2;
(2)x-
| 5 |
| 8 |
x(1-
| 5 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
x=40;
(3)
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
2x=
| 1 |
| 4 |
2x÷2=
| 1 |
| 4 |
x=
| 1 |
| 8 |
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