| ( | 308819 100 | − | x | ) | × | 59 250 | + | x | = | 76848 25 |
| 方程左边 = | 308819 100 | × | 59 250 | − | x | × | 59 250 | + | x |
| = | 18220321 25000 | − | x | × | 59 250 | + | x |
| = | 18220321 25000 | + | 191 250 | x |
18220321 25000 | + | 191 250 | x | = | 76848 25 |
191 250 | x | = | 76848 25 | − | 18220321 25000 |
191 250 | x | = | 58627679 25000 |
| x | = | 58627679 25000 | ÷ | 191 250 |
| = | 58627679 25000 | × | 250 191 |
| = | 58627679 100 | × | 1 191 |
| x | = | 58627679 19100 |
| x | = | 3069.51199 |