20 100 | = | 1833 10000 | ÷ | ( | 6111 5000 | + | 917 10000 | − | x | ÷ | 2 | ) |
| 方程两边同时乘以: | ( | 6111 5000 | + | 917 10000 | − | x | ÷ | 2 | ) |
20 100 | ( | 6111 5000 | + | 917 10000 | − | x | ÷ | 2 | ) | = | 1833 10000 |
20 100 | × | 6111 5000 | + | 20 100 | × | 917 10000 | − | 20 100 | x | ÷ | 2 | = | 1833 10000 |
6111 25000 | + | 917 50000 | − | 1 10 | x | = | 1833 10000 |
13139 50000 | − | 1 10 | x | = | 1833 10000 |
| - | 1 10 | x | = | 1833 10000 | − | 13139 50000 |
| - | 1 10 | x | = | - | 1987 25000 |
1987 25000 | = | 1 10 | x |
1 10 | x | = | 1987 25000 |
| x | = | 1987 25000 | ÷ | 1 10 |
| = | 1987 25000 | × | 10 |
| = | 1987 2500 | × | 1 |
| x | = | 1987 2500 |
| x | = | 0.7948 |