A.2x-3 | B.2x+3 | C.4x | D.3+2+x |
A.46 | B.80 | C.59 | D.57 |
A.41 | B.45 | C.53 | D.57 |
A.5x-1=36 | B.5x+1=36 | C.5x=36+1 | D.5x-36=1 |
A.3x=100+14.5 | B.x-14.5=100 | C.3x=100-14.5 | D.x+14.5=100 |
3km以内(包括3km) | 3km以上(不足1km按1km计算) |
10元 | 2元/km |
A.10+2x=18 | B.2(x-3)=18 | C.10+2(x-3)=18 | D.10+(x-3)=18 |