1) (500b-497b)/85=99
500b-497b=99*85
3b=8415
b=8415/3
b=2805
2)2244/(111z-9z)=22
102z-9z=2244/22
102z=102
z=102/102
z=1
1) (500b-497b)/85=99
500b-497b=99*85
3b=8415
b=8415/3
b=2805
2)2244/(111z-9z)=22
102z-9z=2244/22
102z=102
z=102/102
z=1