| ( | ( | ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | ) | ÷ | ( | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ) | ) | = | 21 25 |
| ( | ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | ) | ÷ | ( | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ) | = | 21 25 |
| 方程两边同时乘以: | ( | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ) |
| ( | ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | ) | = | 21 25 | ( | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ) |
| ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | = | 21 25 | ( | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ) |
| ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | = | 21 25 | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 21 25 | × | 13 20 |
| ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | + | 333 1000 | x | − | 13 20 | = | 21 25 | ( | 43 20 | − | 11 10 | x | ) | ÷ | ( | 217 100 | − | 3 5 | x | ) | − | 273 500 |
| 方程两边同时乘以: | ( | 217 100 | − | 3 5 | x | ) |
| ( | 667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | ) | ( | 217 100 | − | 3 5 | x | ) | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | = | 21 25 | ( | 43 20 | − | 11 10 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) |
667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | × | ( | 217 100 | − | 3 5 | x | ) | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | = | 21 25 | ( | 43 20 | − | 11 10 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) |
667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | × | ( | 217 100 | − | 3 5 | x | ) | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | = | 21 25 | × | 43 20 | − | 21 25 | × | 11 10 | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) |
667 1000 | x | ÷ | ( | 11 5 | − | 6 5 | x | ) | × | ( | 217 100 | − | 3 5 | x | ) | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | = | 903 500 | − | 231 250 | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) |
| 方程两边同时乘以: | ( | 11 5 | − | 6 5 | x | ) |
667 1000 | x | ( | 217 100 | − | 3 5 | x | ) | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | = | 903 500 | ( | 11 5 | − | 6 5 | x | ) | − | 231 250 | x | ( | 11 5 | − | 6 5 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
667 1000 | x | × | 217 100 | − | 667 1000 | x | × | 3 5 | x | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | − | 13 20 | = | 903 500 | ( | 11 5 | − | 6 5 | x | ) | − | 231 250 | x | ( | 11 5 | − | 6 5 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
667 1000 | x | × | 217 100 | − | 667 1000 | x | × | 3 5 | x | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | − | 13 20 | = | 903 500 | × | 11 5 | − | 903 500 | × | 6 5 | x | − | 231 250 | x | ( | 11 5 | − | 6 5 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 333 1000 | x | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | − | 13 20 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) | = | 9933 2500 | − | 2709 1250 | x | − | 231 250 | x | ( | 11 5 | − | 6 5 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 333 1000 | x | × | 217 100 | ( | 11 5 | − | 6 5 | x | ) | − | 333 1000 | x | × | 3 5 | = | 9933 2500 | − | 2709 1250 | x | − | 231 250 | x | ( | 11 5 | − | 6 5 | x | ) | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 333 1000 | x | × | 217 100 | ( | 11 5 | − | 6 5 | x | ) | − | 333 1000 | x | × | 3 5 | = | 9933 2500 | − | 2709 1250 | x | − | 231 250 | x | × | 11 5 | + | 231 250 | x | × | 6 5 | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 72261 100000 | x | ( | 11 5 | − | 6 5 | x | ) | − | 999 5000 | x | x | ( | 11 5 | − | 6 5 | x | ) | = | 9933 2500 | − | 2709 1250 | x | − | 2541 1250 | x | + | 693 625 | x | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 72261 100000 | x | ( | 11 5 | − | 6 5 | x | ) | − | 999 5000 | x | x | ( | 11 5 | − | 6 5 | x | ) | = | 9933 2500 | − | 21 5 | x | + | 693 625 | x | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 72261 100000 | x | × | 11 5 | − | 72261 100000 | x | × | 6 5 | x | = | 9933 2500 | − | 21 5 | x | + | 693 625 | x | x | − | 273 500 | ( | 217 100 | − | 3 5 | x | ) | ( | 11 5 | − | 6 5 | x | ) |
144739 100000 | x | − | 2001 5000 | x | x | + | 72261 100000 | x | × | 11 5 | − | 72261 100000 | x | × | 6 5 | x | = | 9933 2500 | − | 21 5 | x | + | 693 625 | x | x | − | 273 500 | × | 217 100 | ( | 11 5 | − | 6 5 | x | ) | + | 273 500 | × | 3 5 | x |
144739 100000 | x | − | 2001 5000 | x | x | + | 794871 500000 | x | − | 216783 250000 | x | x | − | 999 5000 | x | = | 9933 2500 | − | 21 5 | x | + | 693 625 | x | x | − | 59241 50000 | ( | 11 5 | − | 6 5 | x | ) | + | 819 2500 | x | ( | 11 5 | − | 6 5 | x | ) |