| 10000 | ÷ | ( | x | + | 103 | × | 3 25 | ) | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | = | 250 |
| 方程两边同时乘以: | ( | x | + | 103 | × | 3 25 | ) |
| 10000 | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | ( | x | + | 103 | × | 3 25 | ) | = | 250 | ( | x | + | 103 | × | 3 25 | ) |
| 10000 | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | x | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | 103 | × | 3 25 | = | 250 | ( | x | + | 103 | × | 3 25 | ) |
| 10000 | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | x | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | 103 | × | 3 25 | = | 250 | x | + | 250 | × | 103 | × | 3 25 |
| 10000 | + | 10000 | ÷ | ( | x | + | 103 | × | 1 5 | ) | × | x | + | 123600 | ÷ | ( | x | + | 103 | × | 1 5 | ) | = | 250 | x | + | 3090 |
| 方程两边同时乘以: | ( | x | + | 103 | × | 1 5 | ) |
| 10000 | ( | x | + | 103 | × | 1 5 | ) | + | 10000 | x | + | 123600 | = | 250 | x | ( | x | + | 103 | × | 1 5 | ) | + | 3090 | ( | x | + | 103 | × | 1 5 | ) |
| 10000 | x | + | 10000 | × | 103 | × | 1 5 | + | 10000 | x | + | 123600 | = | 250 | x | ( | x | + | 103 | × | 1 5 | ) | + | 3090 | ( | x | + | 103 | × | 1 5 | ) |
| 10000 | x | + | 10000 | × | 103 | × | 1 5 | + | 10000 | x | + | 123600 | = | 250 | x | x | + | 250 | x | × | 103 | × | 1 5 | + | 3090 | ( | x | + | 103 | × | 1 5 | ) |
| 10000 | x | + | 206000 | + | 10000 | x | + | 123600 | = | 250 | x | x | + | 5150 | x | + | 3090 | ( | x | + | 103 | × | 1 5 | ) |
| 20000 | x | + | 329600 | = | 250 | x | x | + | 5150 | x | + | 3090 | ( | x | + | 103 | × | 1 5 | ) |
| 20000 | x | + | 329600 | = | 250 | x | x | + | 5150 | x | + | 3090 | x | + | 3090 | × | 103 | × | 1 5 |
| 20000 | x | + | 329600 | = | 250 | x | x | + | 5150 | x | + | 3090 | x | + | 63654 |
| 20000 | x | + | 329600 | = | 250 | x | x | + | 8240 | x | + | 63654 |