| X | ÷ | ( | 7 10 | − | X | ) | = | 97 | ÷ | 24 |
| 方程两边同时乘以: | ( | 7 10 | − | X | ) |
| X | = | 97 | ÷ | 24 | × | ( | 7 10 | − | X | ) |
| X | = | 97 | ÷ | 24 | × | 7 10 | − | 97 | ÷ | 24 | × | X |
| X | = | 679 240 | − | 97 24 | X |
| X | + | 97 24 | X | = | 679 240 |
121 24 | X | = | 679 240 |
| X | = | 679 240 | ÷ | 121 24 |
| = | 679 240 | × | 24 121 |
| = | 679 10 | × | 1 121 |
| X | = | 679 1210 |
| X | = | 0.561157 |