| ( | 333 50 | + | x | ) | ÷ | ( | 333 50 | − | x | ) | × | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | = | 20000 |
| 方程两边同时乘以: | ( | 333 50 | − | x | ) |
| ( | 333 50 | + | x | ) | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | = | 20000 | ( | 333 50 | − | x | ) |
333 50 | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | + | x | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | = | 20000 | ( | 333 50 | − | x | ) |
333 50 | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | + | x | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | = | 20000 | × | 333 50 | − | 20000 | x |
333 50 | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | + | x | ( | 15 | + | 609 100 | + | x | ) | ÷ | ( | 3 100 | + | x | ÷ | 222 | ) | = | 133200 | − | 20000 | x |
| 方程两边同时乘以: | ( | 3 100 | + | x | ÷ | 222 | ) |
333 50 | ( | 15 | + | 609 100 | + | x | ) | + | x | ( | 15 | + | 609 100 | + | x | ) | = | 133200 | ( | 3 100 | + | x | ÷ | 222 | ) | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
333 50 | × | 15 | + | 333 50 | × | 609 100 | + | 333 50 | x | + | x | ( | 15 | + | 609 100 | + | x | ) | = | 133200 | ( | 3 100 | + | x | ÷ | 222 | ) | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
333 50 | × | 15 | + | 333 50 | × | 609 100 | + | 333 50 | x | + | x | ( | 15 | + | 609 100 | + | x | ) | = | 133200 | × | 3 100 | + | 133200 | x | ÷ | 222 | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
999 10 | + | 202797 5000 | + | 333 50 | x | + | x | ( | 15 | + | 609 100 | + | x | ) | = | 3996 | + | 600 | x | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
702297 5000 | + | 333 50 | x | + | x | ( | 15 | + | 609 100 | + | x | ) | = | 3996 | + | 600 | x | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
702297 5000 | + | 333 50 | x | + | x | × | 15 | + | x | × | 609 100 | + | x | x | = | 3996 | + | 600 | x | − | 20000 | x | ( | 3 100 | + | x | ÷ | 222 | ) |
702297 5000 | + | 333 50 | x | + | x | × | 15 | + | x | × | 609 100 | + | x | x | = | 3996 | + | 600 | x | − | 20000 | x | × | 3 100 | − | 20000 | x | x | ÷ | 222 |
702297 5000 | + | 333 50 | x | + | x | × | 15 | + | x | × | 609 100 | + | x | x | = | 3996 | + | 600 | x | − | 600 | x | − | 10000 111 | x | x |
702297 5000 | + | 111 4 | x | + | x | x | = | 3996 | + | 0 | x | − | 10000 111 | x | x |