| ( | 9219 250 | X | X | + | 38619 1000 | X | + | 6591 5000 | ) | × | 5 | ÷ | 889845001 500000000 | = | 2118563113 50000000 |
| 方程左边 = | ( | 9219 250 | X | X | + | 38619 1000 | X | + | 6591 5000 | ) | × | 2500000000 889845001 |
| ( | 9219 250 | X | X | + | 38619 1000 | X | + | 6591 5000 | ) | × | 2500000000 889845001 | = | 2118563113 50000000 |
| 方程左边 = | 9219 250 | X | X | × | 2500000000 889845001 | + | 38619 1000 | X | × | 2500000000 889845001 | + | 6591 5000 | × | 2500000000 889845001 |