| ( | x | − | ( | x | ÷ | 109 100 | ) | × | 9 200 | − | 340000 | ) | ÷ | ( | ( | x | ÷ | 109 100 | ) | × | 9 200 | + | 340000 | ) | = | 1 5 |
| 方程两边同时乘以: | ( | ( | x | ÷ | 109 100 | ) | × | 9 200 | + | 340000 | ) |
| ( | x | − | ( | x | ÷ | 109 100 | ) | × | 9 200 | − | 340000 | ) | = | 1 5 | ( | ( | x | ÷ | 109 100 | ) | × | 9 200 | + | 340000 | ) |
| x | − | ( | x | ÷ | 109 100 | ) | × | 9 200 | − | 340000 | = | 1 5 | ( | ( | x | ÷ | 109 100 | ) | × | 9 200 | + | 340000 | ) |
| x | − | ( | x | ÷ | 109 100 | ) | × | 9 200 | − | 340000 | = | 1 5 | ( | x | ÷ | 109 100 | ) | × | 9 200 | + | 1 5 | × | 340000 |
| x | − | ( | x | ÷ | 109 100 | ) | × | 9 200 | − | 340000 | = | 9 1000 | ( | x | ÷ | 109 100 | ) | + | 68000 |
| x | − | x | ÷ | 109 100 | × | 9 200 | − | 340000 | = | 9 1000 | ( | x | ÷ | 109 100 | ) | + | 68000 |
| x | − | x | ÷ | 109 100 | × | 9 200 | − | 340000 | = | 9 1000 | x | ÷ | 109 100 | + | 68000 |
| x | − | x | × | 9 218 | − | 340000 | = | 9 1090 | x | + | 68000 |
209 218 | x | − | 340000 | = | 9 1090 | x | + | 68000 |
209 218 | x | − | 9 1090 | x | = | 68000 | + | 340000 |
518 545 | x | = | 68000 | + | 340000 |
518 545 | x | = | 408000 |
| x | = | 408000 | ÷ | 518 545 |
| = | 408000 | × | 545 518 |
| = | 204000 | × | 545 259 |
| x | = | 111180000 259 |
| x | = | 429266.409266 |