162197 125000 | ( | x | − | 20 | ) | = | 2 | × | 81 625 | ( | 438 | − | x | ) |
| 方程左边 = | 162197 125000 | x | − | 162197 125000 | × | 20 |
| = | 162197 125000 | x | − | 162197 6250 |
162197 125000 | x | − | 162197 6250 | = | 2 | × | 81 625 | ( | 438 | − | x | ) |
| 方程右边 = | 162 625 | ( | 438 | − | x | ) |
162197 125000 | x | − | 162197 6250 | = | 162 625 | ( | 438 | − | x | ) |
| 方程右边 = | 162 625 | × | 438 | − | 162 625 | x |
| = | 70956 625 | − | 162 625 | x |
162197 125000 | x | − | 162197 6250 | = | 70956 625 | − | 162 625 | x |
162197 125000 | x | + | 162 625 | x | = | 70956 625 | + | 162197 6250 |
194597 125000 | x | = | 70956 625 | + | 162197 6250 |
194597 125000 | x | = | 871757 6250 |
| x | = | 871757 6250 | ÷ | 194597 125000 |
| = | 871757 6250 | × | 125000 194597 |
| = | 871757 | × | 20 194597 |
| x | = | 17435140 194597 |
| x | = | 89.59614 |