| x | = | 11981 100 | + | 1001 100 | + | 1 | + | ( | x | ÷ | 21 20 | × | 1 20 | ) | × | 28 25 | + | x | ÷ | 21 20 | × | 12 100 |
| 方程右边 = | 11981 100 | + | 1001 100 | + | 1 | + | ( | x | ÷ | 21 20 | × | 1 20 | ) | × | 28 25 | + | x | × | 4 35 |
| = | 6541 50 | + | ( | x | ÷ | 21 20 | × | 1 20 | ) | × | 28 25 | + | 4 35 | x |
| x | = | 6541 50 | + | ( | x | ÷ | 21 20 | × | 1 20 | ) | × | 28 25 | + | 4 35 | x |
| 方程右边 = | 6541 50 | + | x | ÷ | 21 20 | × | 1 20 | × | 28 25 | + | 4 35 | x |
| = | 6541 50 | + | x | × | 4 75 | + | 4 35 | x |
| = | 6541 50 | + | 88 525 | x |
| x | = | 6541 50 | + | 88 525 | x |
| x | − | 88 525 | x | = | 6541 50 |
437 525 | x | = | 6541 50 |
| x | = | 6541 50 | ÷ | 437 525 |
| = | 6541 50 | × | 525 437 |
| = | 6541 2 | × | 21 437 |
| x | = | 137361 874 |
| x | = | 157.163616 |