A.x=-1是方程2x+1=3的解 | ||
B.x=4是方程5-3x=2(1-x)的解 | ||
C.t=1是方程
| ||
D.y=2是方程
|
t-1 |
3 |
1 |
2 |
16-6x |
20 |
x-3 |
2 |
2x+1 |
6 |
A.3(x-3)-(2x+1)=1 | B.(x-3)-(2x+1)=6 |
C.3(x-3)-2x+1=6 | D.3(x-3)-(2x+1)=6 |
A.4 | B.3 | C.-3 | D.1 |
3x+1 |
2 |
x-2 |
10 |
2x+2 |
5 |
y-1 |
2 |
y+2 |
5 |
4x-1.5 |
0.5 |
5x-0.8 |
0.2 |
1.2-x |
0.1 |
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