133 10 | x | = | ( | 7 2 | + | x | ) | × | 449 50 |
| 方程右边 = | 7 2 | × | 449 50 | + | x | × | 449 50 |
| = | 3143 100 | + | x | × | 449 50 |
133 10 | x | = | 3143 100 | + | 449 50 | x |
133 10 | x | − | 449 50 | x | = | 3143 100 |
108 25 | x | = | 3143 100 |
| x | = | 3143 100 | ÷ | 108 25 |
| = | 3143 100 | × | 25 108 |
| = | 3143 4 | × | 1 108 |
| x | = | 3143 432 |
| x | = | 7.275463 |