| ( | 1 | − | ( | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | ) | ) | × | 49 20 | = | ( | 1 | − | ( | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | ) | ) | × | 83 40 |
| 1 | × | 49 20 | − | ( | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | ) | × | 49 20 | = | ( | 1 | − | ( | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | ) | ) | × | 83 40 |
| 1 | × | 49 20 | − | ( | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | ) | × | 49 20 | = | 1 | × | 83 40 | − | ( | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | ) | × | 83 40 |
49 20 | − | ( | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | ) | × | 49 20 | = | 83 40 | − | ( | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | ) | × | 83 40 |
49 20 | − | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | × | 49 20 | = | 83 40 | − | ( | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | ) | × | 83 40 |
49 20 | − | 7 10 | x | ÷ | ( | 7 10 | x | + | 100 | ) | × | 49 20 | = | 83 40 | − | 133 250 | x | ÷ | ( | 133 250 | x | + | 100 | ) | × | 83 40 |
49 20 | − | 343 200 | x | ÷ | ( | 7 10 | x | + | 100 | ) | = | 83 40 | − | 11039 10000 | x | ÷ | ( | 133 250 | x | + | 100 | ) |
| 方程两边同时乘以: | ( | 7 10 | x | + | 100 | ) | , | ( | 133 250 | x | + | 100 | ) |
49 20 | ( | 7 10 | x | + | 100 | ) | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 83 40 | ( | 7 10 | x | + | 100 | ) | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
49 20 | × | 7 10 | x | ( | 133 250 | x | + | 100 | ) | + | 49 20 | × | 100 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 83 40 | ( | 7 10 | x | + | 100 | ) | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
49 20 | × | 7 10 | x | ( | 133 250 | x | + | 100 | ) | + | 49 20 | × | 100 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 83 40 | × | 7 10 | x | ( | 133 250 | x | + | 100 | ) | + | 83 40 | × | 100 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
343 200 | x | ( | 133 250 | x | + | 100 | ) | + | 245 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 581 400 | x | ( | 133 250 | x | + | 100 | ) | + | 415 2 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
343 200 | x | × | 133 250 | x | + | 343 200 | x | × | 100 | + | 245 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 581 400 | x | ( | 133 250 | x | + | 100 | ) | + | 415 2 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
343 200 | x | × | 133 250 | x | + | 343 200 | x | × | 100 | + | 245 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 581 400 | x | × | 133 250 | x | + | 581 400 | x | × | 100 | + | 415 2 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 343 2 | x | + | 245 | ( | 133 250 | x | + | 100 | ) | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 77273 100000 | x | x | + | 581 4 | x | + | 415 2 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 343 2 | x | + | 245 | × | 133 250 | x | + | 245 | × | 100 | − | 343 200 | x | = | 77273 100000 | x | x | + | 581 4 | x | + | 415 2 | ( | 133 250 | x | + | 100 | ) | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 343 2 | x | + | 245 | × | 133 250 | x | + | 245 | × | 100 | − | 343 200 | x | = | 77273 100000 | x | x | + | 581 4 | x | + | 415 2 | × | 133 250 | x | + | 415 2 | × | 100 | − | 11039 10000 | x |
45619 50000 | x | x | + | 343 2 | x | + | 6517 50 | x | + | 24500 | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 77273 100000 | x | x | + | 581 4 | x | + | 11039 100 | x | + | 20750 | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 7546 25 | x | + | 24500 | − | 343 200 | x | ( | 133 250 | x | + | 100 | ) | = | 77273 100000 | x | x | + | 6391 25 | x | + | 20750 | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 7546 25 | x | + | 24500 | − | 343 200 | x | × | 133 250 | x | − | 343 200 | x | = | 77273 100000 | x | x | + | 6391 25 | x | + | 20750 | − | 11039 10000 | x | ( | 7 10 | x | + | 100 | ) |
45619 50000 | x | x | + | 7546 25 | x | + | 24500 | − | 343 200 | x | × | 133 250 | x | − | 343 200 | x | = | 77273 100000 | x | x | + | 6391 25 | x | + | 20750 | − | 11039 10000 | x | × | 7 10 | x | − | 11039 10000 | x |
45619 50000 | x | x | + | 7546 25 | x | + | 24500 | − | 45619 50000 | x | x | − | 343 2 | x | = | 77273 100000 | x | x | + | 6391 25 | x | + | 20750 | − | 77273 100000 | x | x | − | 11039 100 | x |
45619 50000 | x | x | + | 6517 50 | x | + | 24500 | − | 45619 50000 | x | x | = | 77273 100000 | x | x | + | 581 4 | x | + | 20750 | − | 77273 100000 | x | x |