1017 5000 | ÷ | ( | 549999 2000 | − | 16 | x | ) | = | 217 400000 | ÷ | ( | 7 20 | − | 9 10 | x | ) |
| 方程两边同时乘以: | ( | 549999 2000 | − | 16 | x | ) | , | ( | 7 20 | − | 9 10 | x | ) |
1017 5000 | ( | 7 20 | − | 9 10 | x | ) | = | 217 400000 | ( | 549999 2000 | − | 16 | x | ) |
1017 5000 | × | 7 20 | − | 1017 5000 | × | 9 10 | x | = | 217 400000 | ( | 549999 2000 | − | 16 | x | ) |
1017 5000 | × | 7 20 | − | 1017 5000 | × | 9 10 | x | = | 217 400000 | × | 549999 2000 | − | 217 400000 | × | 16 | x |
7119 100000 | − | 9153 50000 | x | = | 119349783 800000000 | − | 217 25000 | x |
| - | 9153 50000 | x | + | 217 25000 | x | = | 119349783 800000000 | − | 7119 100000 |
| - | 8719 50000 | x | = | 119349783 800000000 | − | 7119 100000 |