3 |
x-3 |
3a |
x-3 |
x-1 |
2 |
1 |
x |
x+2 |
5x |
A.10x-5(x-1)=1-2(x+2) | B.10x-5x(x-1)=10-2(x+2) |
C.10x-5(x-1)=10-(x+2) | D.10x-(x-1)=10-(x+2) |
1 |
x |
1 |
c |
1 |
c |
2 |
x |
2 |
c |
2 |
c |
3 |
x |
3 |
c |
3 |
c |
m |
x |
m |
c |
2 |
x-1 |
2 |
a-1 |
m-1 |
x+2 |
1 |
x+2 |
3 |
x+2 |
a |
x+2 |
a |
x+1 |
2a-x-1 |
x2+x |
© 2017-2019 超级试练试题库,All Rights Reserved.