8167 10 | = | ( | 31 | − | x | ) | × | 297 10 | + | 99 5 | x |
| 方程右边 = | 31 | × | 297 10 | − | x | × | 297 10 | + | 99 5 | x |
| = | 9207 10 | − | x | × | 297 10 | + | 99 5 | x |
| = | 9207 10 | − | 99 10 | x |
8167 10 | = | 9207 10 | − | 99 10 | x |
99 10 | x | = | 9207 10 | − | 8167 10 |
99 10 | x | = | 104 |
| x | = | 104 | ÷ | 99 10 |
| = | 104 | × | 10 99 |
| x | = | 1040 99 |
| x | = | 10.505051 |