| x | × | 4 5 | − | ( | 400 | − | 100 | − | 57 | ) | + | ( | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | − | ( | 8 5 | + | 4 | ) | + | x | × | 4 5 | × | 23 1000 | + | 3 2 | − | 153 20 | ) | × | 37 | = | 2 |
| 方程左边 = | 4 5 | x | − | 400 | + | 100 | + | 57 | + | ( | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | − | ( | 8 5 | + | 4 | ) | + | x | × | 4 5 | × | 23 1000 | + | 3 2 | − | 153 20 | ) | × | 37 |
| = | 4 5 | x | − | 243 | + | ( | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | − | ( | 8 5 | + | 4 | ) | + | x | × | 4 5 | × | 23 1000 | + | 3 2 | − | 153 20 | ) | × | 37 |
| = | 4 5 | x | − | 243 | + | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | × | 37 | − | ( | 8 5 | + | 4 | ) | × | 37 | + | x | × | 4 5 | × | 23 1000 | × | 37 | + | 3 2 |
| = | 4 5 | x | − | 243 | + | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | × | 37 | − | ( | 8 5 | + | 4 | ) | × | 37 | + | x | × | 851 1250 | + | 111 2 | − | 5661 20 |
| = | 1851 1250 | x | − | 9411 20 | + | ( | 20 | − | 203 1000 | × | 12 | − | 7 25 | × | 12 | ) | × | 37 | − | ( | 8 5 | + | 4 | ) | × | 37 |
| = | 1851 1250 | x | − | 9411 20 | + | 20 | × | 37 | − | 203 1000 | × | 12 | × | 37 | − | 7 25 | × | 12 | × | 37 | − | ( | 8 5 | + | 4 | ) |
| = | 1851 1250 | x | − | 9411 20 | + | 740 | − | 22533 250 | − | 3108 25 | − | ( | 8 5 | + | 4 | ) | × | 37 |
| = | 1851 1250 | x | + | 27499 500 | − | ( | 8 5 | + | 4 | ) | × | 37 |
| = | 1851 1250 | x | + | 27499 500 | − | 8 5 | × | 37 | − | 4 | × | 37 |
| = | 1851 1250 | x | + | 27499 500 | − | 296 5 | − | 148 |
| = | 1851 1250 | x | − | 76101 500 |
1851 1250 | x | − | 76101 500 | = | 2 |
1851 1250 | x | = | 2 | + | 76101 500 |
1851 1250 | x | = | 77101 500 |
| x | = | 77101 500 | ÷ | 1851 1250 |
| = | 77101 500 | × | 1250 1851 |
| = | 77101 2 | × | 5 1851 |
| x | = | 385505 3702 |
| x | = | 104.134252 |