| 114 | × | 791 100 | + | 15 | × | 797 100 | + | 13 | x | = | ( | 129 | + | x | ) | × | 199 25 |
| 方程左边 = | 45087 50 | + | 2391 20 | + | 13 | x |
| = | 102129 100 | + | 13 | x |
102129 100 | + | 13 | x | = | ( | 129 | + | x | ) | × | 199 25 |
| 方程右边 = | 129 | × | 199 25 | + | x | × | 199 25 |
| = | 25671 25 | + | x | × | 199 25 |
102129 100 | + | 13 | x | = | 25671 25 | + | 199 25 | x |
| 13 | x | − | 199 25 | x | = | 25671 25 | − | 102129 100 |
126 25 | x | = | 25671 25 | − | 102129 100 |
126 25 | x | = | 111 20 |
| x | = | 111 20 | ÷ | 126 25 |
| = | 111 20 | × | 25 126 |
| = | 37 4 | × | 5 42 |
| x | = | 185 168 |
| x | = | 1.10119 |