| 17 | ÷ | 102 | + | X | ÷ | 1000 | + | ( | 307 5 | − | X | ) | ÷ | 1650 | + | 4 | ÷ | 447 10 | + | 0 | ÷ | 53 | = | 61 200 |
| 方程左边 = | 1 6 | + | X | × | 1 1000 | + | ( | 307 5 | − | X | ) | × | 1 1650 | + | 40 447 | + | 0 |
| = | 229 894 | + | 1 1000 | X | + | ( | 307 5 | − | X | ) | × | 1 1650 |
229 894 | + | 1 1000 | X | + | ( | 307 5 | − | X | ) | × | 1 1650 | = | 61 200 |
| 方程左边 = | 229 894 | + | 1 1000 | X | + | 307 5 | × | 1 1650 | − | X | × | 1 1650 |
| = | 229 894 | + | 1 1000 | X | + | 307 8250 | − | X | × | 1 1650 |
| = | 60103 204875 | + | 13 33000 | X |
60103 204875 | + | 13 33000 | X | = | 61 200 |
13 33000 | X | = | 61 200 | − | 60103 204875 |
13 33000 | X | = | 19071 1639000 |
| X | = | 19071 1639000 | ÷ | 13 33000 |
| = | 19071 1639000 | × | 33000 13 |
| = | 1467 149 | × | 3 |
| X | = | 4401 149 |
| X | = | 29.536913 |