| x | ÷ | ( | 4919 2500 | − | x | ) | × | 3 10 | = | 71 100 |
| 方程两边同时乘以: | ( | 4919 2500 | − | x | ) |
| x | × | 3 10 | = | 71 100 | ( | 4919 2500 | − | x | ) |
| x | × | 3 10 | = | 71 100 | × | 4919 2500 | − | 71 100 | x |
| x | × | 3 10 | = | 349249 250000 | − | 71 100 | x |
3 10 | x | + | 71 100 | x | = | 349249 250000 |
101 100 | x | = | 349249 250000 |
| x | = | 349249 250000 | ÷ | 101 100 |
| = | 349249 250000 | × | 100 101 |
| = | 349249 2500 | × | 1 101 |
| x | = | 349249 252500 |
| x | = | 1.383164 |