| ( | 79 50 | − | 1383 1000 | ) | ÷ | ( | x | − | 1 5 | ) | = | ( | 1833 1000 | − | 79 50 | ) | ÷ | ( | 1 10 | − | x | ) |
| 方程两边同时乘以: | ( | x | − | 1 5 | ) | , | ( | 1 10 | − | x | ) |
| ( | 79 50 | − | 1383 1000 | ) | ( | 1 10 | − | x | ) | = | ( | 1833 1000 | − | 79 50 | ) | ( | x | − | 1 5 | ) |
79 50 | ( | 1 10 | − | x | ) | − | 1383 1000 | ( | 1 10 | − | x | ) | = | ( | 1833 1000 | − | 79 50 | ) | ( | x | − | 1 5 | ) |
79 50 | ( | 1 10 | − | x | ) | − | 1383 1000 | ( | 1 10 | − | x | ) | = | 1833 1000 | ( | x | − | 1 5 | ) | − | 79 50 | ( | x | − | 1 5 | ) |
79 50 | × | 1 10 | − | 79 50 | x | − | 1383 1000 | ( | 1 10 | − | x | ) | = | 1833 1000 | ( | x | − | 1 5 | ) | − | 79 50 | ( | x | − | 1 5 | ) |
79 50 | × | 1 10 | − | 79 50 | x | − | 1383 1000 | ( | 1 10 | − | x | ) | = | 1833 1000 | x | − | 1833 1000 | × | 1 5 | − | 79 50 | ( | x | − | 1 5 | ) |
79 500 | − | 79 50 | x | − | 1383 1000 | ( | 1 10 | − | x | ) | = | 1833 1000 | x | − | 1833 5000 | − | 79 50 | ( | x | − | 1 5 | ) |
79 500 | − | 79 50 | x | − | 1383 1000 | × | 1 10 | + | 1383 1000 | x | = | 1833 1000 | x | − | 1833 5000 | − | 79 50 | ( | x | − | 1 5 | ) |
79 500 | − | 79 50 | x | − | 1383 1000 | × | 1 10 | + | 1383 1000 | x | = | 1833 1000 | x | − | 1833 5000 | − | 79 50 | x | + | 79 50 | × | 1 5 |
79 500 | − | 79 50 | x | − | 1383 10000 | + | 1383 1000 | x | = | 1833 1000 | x | − | 1833 5000 | − | 79 50 | x | + | 79 250 |
197 10000 | − | 197 1000 | x | = | 253 1000 | x | − | 253 5000 |
| - | 197 1000 | x | − | 253 1000 | x | = | - | 253 5000 | − | 197 10000 |
| - | 9 20 | x | = | - | 253 5000 | − | 197 10000 |
| - | 9 20 | x | = | - | 703 10000 |
703 10000 | = | 9 20 | x |
9 20 | x | = | 703 10000 |
| x | = | 703 10000 | ÷ | 9 20 |
| = | 703 10000 | × | 20 9 |
| = | 703 500 | × | 1 9 |
| x | = | 703 4500 |
| x | = | 0.156222 |