| 1300 | ÷ | x | = | 1300 | ÷ | ( | 1 | + | 30 100 | ) | × | x | + | 10 |
| 方程两边同时乘以: | x | , | ( | 1 | + | 30 100 | ) |
| 1300 | ( | 1 | + | 30 100 | ) | = | 1300 | x | x | + | 10 | x | ( | 1 | + | 30 100 | ) |
| 1300 | × | 1 | + | 1300 | × | 30 100 | = | 1300 | x | x | + | 10 | x | ( | 1 | + | 30 100 | ) |
| 1300 | × | 1 | + | 1300 | × | 30 100 | = | 1300 | x | x | + | 10 | x | × | 1 | + | 10 | x | × | 30 100 |
| 1300 | + | 390 | = | 1300 | x | x | + | 10 | x | + | 3 | x |
| 1690 | = | 1300 | x | x | + | 13 | x |