| ( | 10000 | − | 70 100 | × | 75 | X | × | 32 500 | ) | ÷ | ( | 30 100 | × | 75 | X | + | 5 100 | × | 75 | X | ) | = | 19 500 |
| 方程两边同时乘以: | ( | 30 100 | × | 75 | X | + | 5 100 | × | 75 | X | ) |
| ( | 10000 | − | 70 100 | × | 75 | X | × | 32 500 | ) | = | 19 500 | ( | 30 100 | × | 75 | X | + | 5 100 | × | 75 | X | ) |
| 10000 | − | 70 100 | × | 75 | X | × | 32 500 | = | 19 500 | ( | 30 100 | × | 75 | X | + | 5 100 | × | 75 | X | ) |
| 10000 | − | 70 100 | × | 75 | X | × | 32 500 | = | 19 500 | × | 30 100 | × | 75 | X | + | 19 500 | × | 5 100 | × | 75 | X |
| 10000 | − | 84 25 | X | = | 171 200 | X | + | 57 400 | X |
| 10000 | − | 84 25 | X | = | 399 400 | X |
| - | 84 25 | X | − | 399 400 | X | = | - | 10000 |
| - | 1743 400 | X | = | - | 10000 |
| 10000 | = | 1743 400 | X |
1743 400 | X | = | 10000 |
| X | = | 10000 | ÷ | 1743 400 |
| = | 10000 | × | 400 1743 |
| X | = | 4000000 1743 |
| X | = | 2294.893861 |