| x | × | 7 | − | 196 | − | 4584 25 | − | 1040 | × | 4 5 | − | 5 | − | ( | x | × | 7 | × | 13 100 | − | 14 | ) | × | 1 10 | = | 10219 100 |
| 方程左边 = | x | × | 7 | − | 196 | − | 4584 25 | − | 832 | − | 5 | − | ( | x | × | 7 | × | 13 100 | − | 14 | ) | × | 1 10 |
| = | 7 | x | − | 30409 25 | − | ( | x | × | 7 | × | 13 100 | − | 14 | ) | × | 1 10 |
| 7 | x | − | 30409 25 | − | ( | x | × | 7 | × | 13 100 | − | 14 | ) | × | 1 10 | = | 10219 100 |
| 方程左边 = | 7 | x | − | 30409 25 | − | x | × | 7 | × | 13 100 | × | 1 10 | + | 14 | × | 1 10 |
| = | 7 | x | − | 30409 25 | − | x | × | 91 1000 | + | 7 5 |
| = | 6909 1000 | x | − | 30374 25 |
6909 1000 | x | − | 30374 25 | = | 10219 100 |
6909 1000 | x | = | 10219 100 | + | 30374 25 |
6909 1000 | x | = | 26343 20 |
| x | = | 26343 20 | ÷ | 6909 1000 |
| = | 26343 20 | × | 1000 6909 |
| = | 8781 | × | 50 2303 |
| x | = | 439050 2303 |
| x | = | 190.64264 |