| x | × | 2 | + | 1537 10000 | x | − | 537 100000 | = | 0 |
| 方程左边 = | 21537 10000 | x | − | 537 100000 |
21537 10000 | x | − | 537 100000 | = | 0 |
21537 10000 | x | = | 0 | + | 537 100000 |
21537 10000 | x | = | 537 100000 |
| x | = | 537 100000 | ÷ | 21537 10000 |
| = | 537 100000 | × | 10000 21537 |
| = | 179 10 | × | 1 7179 |
| x | = | 179 71790 |
| x | = | 0.002493 |