| 2 | = | 100 | ( | x | − | 525 2 | ) | ÷ | ( | x | × | 1350 | ÷ | 100 | ) |
| 方程两边同时乘以: | ( | x | × | 1350 | ÷ | 100 | ) |
| 2 | ( | x | × | 1350 | ÷ | 100 | ) | = | 100 | ( | x | − | 525 2 | ) |
| 2 | x | × | 1350 | ÷ | 100 | = | 100 | ( | x | − | 525 2 | ) |
| 2 | x | × | 1350 | ÷ | 100 | = | 100 | x | − | 100 | × | 525 2 |
| 27 | x | = | 100 | x | − | 26250 |
| 27 | x | − | 100 | x | = | - | 26250 |
| - | 73 | x | = | - | 26250 |
| 26250 | = | 73 | x |
| 73 | x | = | 26250 |
| x | = | 26250 | ÷ | 73 |
| = | 26250 | × | 1 73 |
| x | = | 26250 73 |
| x | = | 359.589041 |