| ( | 6427 200 | − | 30 | ) | ÷ | ( | 40 | − | 6427 200 | ) | = | ( | x | − | 93 50 | ) | ÷ | ( | 191 100 | − | x | ) |
| 方程两边同时乘以: | ( | 40 | − | 6427 200 | ) | , | ( | 191 100 | − | x | ) |
| ( | 6427 200 | − | 30 | ) | ( | 191 100 | − | x | ) | = | ( | x | − | 93 50 | ) | ( | 40 | − | 6427 200 | ) |
6427 200 | ( | 191 100 | − | x | ) | − | 30 | ( | 191 100 | − | x | ) | = | ( | x | − | 93 50 | ) | ( | 40 | − | 6427 200 | ) |
6427 200 | ( | 191 100 | − | x | ) | − | 30 | ( | 191 100 | − | x | ) | = | x | ( | 40 | − | 6427 200 | ) | − | 93 50 | ( | 40 | − | 6427 200 | ) |
6427 200 | × | 191 100 | − | 6427 200 | x | − | 30 | ( | 191 100 | − | x | ) | = | x | ( | 40 | − | 6427 200 | ) | − | 93 50 | ( | 40 | − | 6427 200 | ) |
6427 200 | × | 191 100 | − | 6427 200 | x | − | 30 | ( | 191 100 | − | x | ) | = | x | × | 40 | − | x | × | 6427 200 | − | 93 50 | ( | 40 | − | 6427 200 | ) |
1227557 20000 | − | 6427 200 | x | − | 30 | ( | 191 100 | − | x | ) | = | x | × | 40 | − | x | × | 6427 200 | − | 93 50 | ( | 40 | − | 6427 200 | ) |
1227557 20000 | − | 6427 200 | x | − | 30 | ( | 191 100 | − | x | ) | = | 1573 200 | x | − | 93 50 | ( | 40 | − | 6427 200 | ) |
1227557 20000 | − | 6427 200 | x | − | 30 | × | 191 100 | + | 30 | x | = | 1573 200 | x | − | 93 50 | ( | 40 | − | 6427 200 | ) |
1227557 20000 | − | 6427 200 | x | − | 30 | × | 191 100 | + | 30 | x | = | 1573 200 | x | − | 93 50 | × | 40 | + | 93 50 | × | 6427 200 |
1227557 20000 | − | 6427 200 | x | − | 573 10 | + | 30 | x | = | 1573 200 | x | − | 372 5 | + | 597711 10000 |
81557 20000 | − | 427 200 | x | = | 1573 200 | x | − | 146289 10000 |
| - | 427 200 | x | − | 1573 200 | x | = | - | 146289 10000 | − | 81557 20000 |
| - | 10 | x | = | - | 146289 10000 | − | 81557 20000 |
| - | 10 | x | = | - | 74827 4000 |
74827 4000 | = | 10 | x |
| 10 | x | = | 74827 4000 |
| x | = | 74827 4000 | ÷ | 10 |
| = | 74827 4000 | × | 1 10 |
| x | = | 74827 40000 |
| x | = | 1.870675 |