5 |
6 |
1 |
2 |
3 |
4 |
x-3 |
3 |
0.3x+0.1 |
0.4 |
11 |
9 |
x-3 |
3 |
3x+1 |
4 |
27 |
5 |
A.0 | B.1 | C.2 | D.3 |
4-m |
5 |
A.0 | B.1 | C.-1 | D.2 |
x+2 |
4 |
2x-3 |
6 |
y-1 |
3 |
1 |
2 |
A.由7x=4x-3移项得7x-4x=3 | ||||
B.由
| ||||
C.由2(2x-1)-3(x-3)=1去括号得4x-2-3x-9=1 | ||||
D.由2(x+1)=x+7去括号、移项、合并同类项得x=5 |
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