( | 7 25 | ( | Y | + | 475157 10 | ) | + | 7 20 | Y | + | 123 200 | × | 22173897 200 | − | 7 200 | × | 1175272 25 | ) | ÷ | ( | Y | + | 475157 10 | + | 22173897 200 | ) | + | ( | 1 20 | Y | + | 1 20 | × | 22173897 200 | ) | ÷ | ( | Y | + | 475157 10 | + | Y | + | 22173897 200 | ) | = | 21 50 |
方程两边同时乘以: | ( | Y | + | 475157 10 | + | 22173897 200 | ) |
( | 7 25 | ( | Y | + | 475157 10 | ) | + | 7 20 | Y | + | 123 200 | × | 22173897 200 | − | 7 200 | × | 1175272 25 | ) | + | ( | 1 20 | Y | + | 1 20 | × | 22173897 200 | ) | ÷ | ( | Y | + | 475157 10 | + | Y | + | 22173897 200 | ) | × | ( | Y | + | 475157 10 | + | 22173897 200 | ) | = | 21 50 | ( | Y | + | 475157 10 | + | 22173897 200 | ) |
7 25 | ( | Y | + | 475157 10 | ) | + | 7 20 | Y | + | 123 200 | × | 22173897 200 | − | 7 200 | × | 1175272 25 | + | ( | 1 20 | Y | + | 1 20 | × | 22173897 200 | ) | ÷ | ( | Y | + | 475157 10 | + | Y | + | 22173897 200 | ) | × | ( | Y | + | 475157 10 | + | 22173897 200 | ) | = | 21 50 | ( | Y | + | 475157 10 | + | 22173897 200 | ) |
7 25 | ( | Y | + | 475157 10 | ) | + | 7 20 | Y | + | 123 200 | × | 22173897 200 | − | 7 200 | × | 1175272 25 | + | ( | 1 20 | Y | + | 1 20 | × | 22173897 200 | ) | ÷ | ( | Y | + | 475157 10 | + | Y | + | 22173897 200 | ) | × | ( | Y | + | 475157 10 | + | 22173897 200 | ) | = | 21 50 | Y | + | 21 50 | × | 475157 10 | + | 21 50 | × | 22173897 200 |
7 25 | ( | Y | + | 475157 10 | ) | + | 7 20 | Y | + | 2727389331 40000 | − | 1028363 625 | + | ( | 1 20 | Y | + | 1 20 | × | 22173897 200 | ) | ÷ | ( | Y | + | 475157 10 | + | Y | + | 22173897 200 | ) | × | ( | Y | + | 475157 10 | + | 22173897 200 | ) | = | 21 50 | Y | + | 9978297 500 | + | 465651837 10000 |