77799 100 | × | 6 100 | ( | 1 | − | x | ) | × | 2 | = | 70 |
| 方程左边 = | 233397 2500 | ( | 1 | − | x | ) |
233397 2500 | ( | 1 | − | x | ) | = | 70 |
| 方程左边 = | 233397 2500 | × | 1 | − | 233397 2500 | x |
| = | 233397 2500 | − | 233397 2500 | x |
233397 2500 | − | 233397 2500 | x | = | 70 |
| - | 233397 2500 | x | = | 70 | − | 233397 2500 |
| - | 233397 2500 | x | = | - | 58397 2500 |
58397 2500 | = | 233397 2500 | x |
233397 2500 | x | = | 58397 2500 |
| x | = | 58397 2500 | ÷ | 233397 2500 |
| = | 58397 2500 | × | 2500 233397 |
| = | 58397 | × | 1 233397 |
| x | = | 58397 233397 |
| x | = | 0.250205 |