1. 2/x-1/x-72=1/x-72=-1/4-72=-72,25
2. 2/x-1/x-6=1/x-6=-1/5-6=-6,2
3. 1/x-1/2x-2=1/2x-2=1/4-2=-1,75
4. 2/3x-1/3x-2=1/3x-2=1/12-2=-23/12
1. 2/x-1/x-72=1/x-72=-1/4-72=-72,25
2. 2/x-1/x-6=1/x-6=-1/5-6=-6,2
3. 1/x-1/2x-2=1/2x-2=1/4-2=-1,75
4. 2/3x-1/3x-2=1/3x-2=1/12-2=-23/12