| ( | x | ÷ | 18 | + | ( | 1 | − | x | ) | ÷ | 65 | ) | = | 1961051 100000000 |
| 方程左边 = | x | ÷ | 18 | + | ( | 1 | − | x | ) | ÷ | 65 |
| = | 1 18 | x | + | 1 | × | 1 65 | − | x | × | 1 65 |
| = | 1 18 | x | + | 1 65 | − | x | × | 1 65 |
| = | 47 1170 | x | + | 1 65 |
47 1170 | x | + | 1 65 | = | 1961051 100000000 |
47 1170 | x | = | 1961051 100000000 | − | 1 65 |
47 1170 | x | = | 5493663 1300000000 |
| x | = | 5493663 1300000000 | ÷ | 47 1170 |
| = | 5493663 1300000000 | × | 1170 47 |
| = | 5493663 130000000 | × | 117 47 |
| x | = | 642758571 6110000000 |
| x | = | 49442967 470000000 |
| x | = | 0.105198 |