| ( | 141 125 | − | x | ) | ( | 50 | − | 493 10 | ) | = | ( | x | − | 1093 1000 | ) | × | 93 10 |
| 方程左边 = | 141 125 | ( | 50 | − | 493 10 | ) | − | x | ( | 50 | − | 493 10 | ) |
| = | 141 125 | × | 50 | − | 141 125 | × | 493 10 | − | x | ( | 50 | − | 493 10 | ) |
| = | 282 5 | − | 69513 1250 | − | x | ( | 50 | − | 493 10 | ) |
| = | 987 1250 | − | x | ( | 50 | − | 493 10 | ) |
| = | 987 1250 | − | x | × | 50 | + | x | × | 493 10 |
| = | 987 1250 | − | 7 10 | x |
987 1250 | − | 7 10 | x | = | ( | x | − | 1093 1000 | ) | × | 93 10 |
| 方程右边 = | x | × | 93 10 | − | 1093 1000 | × | 93 10 |
| = | x | × | 93 10 | − | 101649 10000 |
987 1250 | − | 7 10 | x | = | 93 10 | x | − | 101649 10000 |
| - | 7 10 | x | − | 93 10 | x | = | - | 101649 10000 | − | 987 1250 |
| - | 10 | x | = | - | 101649 10000 | − | 987 1250 |
| - | 10 | x | = | - | 21909 2000 |
21909 2000 | = | 10 | x |
| 10 | x | = | 21909 2000 |
| x | = | 21909 2000 | ÷ | 10 |
| = | 21909 2000 | × | 1 10 |
| x | = | 21909 20000 |
| x | = | 1.09545 |