x+2−1 |
x+2 |
x+3−1 |
x+3 |
x+6−1 |
x+6 |
x+7−1 |
x+7 |
即1-
1 |
x+2 |
1 |
x+3 |
1 |
x+6 |
1 |
x+7 |
整理得:
1 |
x+3 |
1 |
x+2 |
1 |
x+7 |
1 |
x+6 |
x+2−x−3 |
(x+2)(x+3) |
x+6−x−7 |
(x+6)(x+7) |
整理得:
1 |
x2+5x+6 |
1 |
x2+13x+42 |
去分母得:x2+5x+6=x2+13x+42,
解得:x=-4.5,
经检验是分式方程的解.
x+1 |
x+2 |
x+2 |
x+3 |
x+5 |
x+6 |
x+6 |
x+7 |
x+2−1 |
x+2 |
x+3−1 |
x+3 |
x+6−1 |
x+6 |
x+7−1 |
x+7 |
1 |
x+2 |
1 |
x+3 |
1 |
x+6 |
1 |
x+7 |
1 |
x+3 |
1 |
x+2 |
1 |
x+7 |
1 |
x+6 |
x+2−x−3 |
(x+2)(x+3) |
x+6−x−7 |
(x+6)(x+7) |
1 |
x2+5x+6 |
1 |
x2+13x+42 |