61 20 | x | × | 2 | + | 184052 125 | x | − | 208699 1000 | = | 0 |
| 方程左边 = | 61 10 | x | + | 184052 125 | x | − | 208699 1000 |
| = | 369629 250 | x | − | 208699 1000 |
369629 250 | x | − | 208699 1000 | = | 0 |
369629 250 | x | = | 0 | + | 208699 1000 |
369629 250 | x | = | 208699 1000 |
| x | = | 208699 1000 | ÷ | 369629 250 |
| = | 208699 1000 | × | 250 369629 |
| = | 208699 4 | × | 1 369629 |
| x | = | 208699 1478516 |
| x | = | 0.141154 |