28301887 50 | − | X | ÷ | 103 100 | − | X | ÷ | 103 100 | × | 3 100 | × | 3 50 | = | 0 |
| 方程左边 = | 28301887 50 | − | X | × | 100 103 | − | X | × | 9 5150 |
| = | 28301887 50 | − | 5009 5150 | X |
28301887 50 | − | 5009 5150 | X | = | 0 |
| - | 5009 5150 | X | = | 0 | − | 28301887 50 |
| - | 5009 5150 | X | = | - | 28301887 50 |
28301887 50 | = | 5009 5150 | X |
5009 5150 | X | = | 28301887 50 |
| X | = | 28301887 50 | ÷ | 5009 5150 |
| = | 28301887 50 | × | 5150 5009 |
| = | 28301887 | × | 103 5009 |
| X | = | 2915094361 5009 |
| X | = | 581971.323817 |