209 250 | = | ( | 123 50 | x | ) | ÷ | ( | 1 | + | 73 50 | x | ) |
| 方程两边同时乘以: | ( | 1 | + | 73 50 | x | ) |
209 250 | ( | 1 | + | 73 50 | x | ) | = | ( | 123 50 | x | ) |
209 250 | × | 1 | + | 209 250 | × | 73 50 | x | = | ( | 123 50 | x | ) |
209 250 | × | 1 | + | 209 250 | × | 73 50 | x | = | 123 50 | x |
209 250 | + | 15257 12500 | x | = | 123 50 | x |
15257 12500 | x | − | 123 50 | x | = | - | 209 250 |
| - | 15493 12500 | x | = | - | 209 250 |
209 250 | = | 15493 12500 | x |
15493 12500 | x | = | 209 250 |
| x | = | 209 250 | ÷ | 15493 12500 |
| = | 209 250 | × | 12500 15493 |
| = | 209 | × | 50 15493 |
| x | = | 10450 15493 |
| x | = | 0.674498 |