题目
题型:解答题难度:一般来源:不详
1 |
2 |
答案
∴(-2)*x=3
1 |
2 |
∴4-(-2)x=3
1 |
2 |
2x=-
1 |
2 |
解得:x=-
1 |
4 |
核心考点
举一反三
(1)
x+2 |
3 |
x-1 |
2 |
x |
5 |
(2)
x |
0.5 |
0.23-0.2x |
0.03 |
1-2x |
6 |
x+1 |
3 |
2x+1 |
4 |
6x-a |
3 |
a |
6 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
4 |
x+2 |
3 |
x-1 |
2 |
x |
5 |
x |
0.5 |
0.23-0.2x |
0.03 |
1-2x |
6 |
x+1 |
3 |
2x+1 |
4 |
6x-a |
3 |
a |
6 |
x+0.1 |
1.2 |
0.2x+0.1 |
0.4 |