| ( | 9143 100 | + | x | ) | ÷ | ( | 260 | + | x | ) | = | 3 8 |
| 方程两边同时乘以: | ( | 260 | + | x | ) |
| ( | 9143 100 | + | x | ) | = | 3 8 | ( | 260 | + | x | ) |
9143 100 | + | x | = | 3 8 | ( | 260 | + | x | ) |
9143 100 | + | x | = | 3 8 | × | 260 | + | 3 8 | x |
9143 100 | + | x | = | 195 2 | + | 3 8 | x |
| x | − | 3 8 | x | = | 195 2 | − | 9143 100 |
5 8 | x | = | 195 2 | − | 9143 100 |
5 8 | x | = | 607 100 |
| x | = | 607 100 | ÷ | 5 8 |
| = | 607 100 | × | 8 5 |
| = | 607 25 | × | 2 5 |
| x | = | 1214 125 |
| x | = | 9.712 |