| 2x+9 |
| x+3 |
| 1 |
| x−3 |
| (2x+9)(x−3)−(x+3) |
| (x+3)(x−3) |
| 2(x−5)(x+3) |
| (x+3)(x−3) |
| 2(x−5) |
| x−3 |
根据题意得:
| 2(x−5) |
| x−3 |
| 2 |
| x |
方程的两边同乘x(x-3),得2x(x-5)=2x(x-3)+2(x-3),
解得x=1.
检验:把x=1代入x(x-3)≠0.
∴原方程的解为:x=1.
| 2x+9 |
| x+3 |
| 1 |
| x−3 |
| 2 |
| x |
| 2x+9 |
| x+3 |
| 1 |
| x−3 |
| (2x+9)(x−3)−(x+3) |
| (x+3)(x−3) |
| 2(x−5)(x+3) |
| (x+3)(x−3) |
| 2(x−5) |
| x−3 |
| 2(x−5) |
| x−3 |
| 2 |
| x |