| ( | 1391673 500 | − | x | ) | ÷ | x | × | 100 100 | = | 129 10000 |
| 方程两边同时乘以: | x |
| ( | 1391673 500 | − | x | ) | × | 100 100 | = | 129 10000 | x |
1391673 500 | × | 100 100 | − | x | × | 100 100 | = | 129 10000 | x |
1391673 500 | − | x | × | 100 100 | = | 129 10000 | x |
| - | 100 100 | x | − | 129 10000 | x | = | - | 1391673 500 |
| - | 10129 10000 | x | = | - | 1391673 500 |
1391673 500 | = | 10129 10000 | x |
10129 10000 | x | = | 1391673 500 |
| x | = | 1391673 500 | ÷ | 10129 10000 |
| = | 1391673 500 | × | 10000 10129 |
| = | 1391673 | × | 20 10129 |
| x | = | 27833460 10129 |
| x | = | 2747.898114 |