893 25 | ÷ | 3 | × | x | x | x | − | 1 2 | ( | 1191 100 | × | 7 | − | 109 2 | − | 893 25 | × | 4 | ) | x | x | − | ( | 1191 100 | × | 7 | − | 109 2 | ) | × | 4 | x | = | 1197 100 | × | 49 | × | 2 | − | 1191 100 | × | 49 | × | 7 |
| 方程左边 = | 893 75 | x | x | x | − | 1 2 | ( | 1191 100 | × | 7 | − | 109 2 | − | 893 25 | × | 4 | ) | x | x | − | ( | 1191 100 | × | 7 | − | 109 2 | ) | × | 4 | x |
893 75 | x | x | x | − | 1 2 | ( | 1191 100 | × | 7 | − | 109 2 | − | 893 25 | × | 4 | ) | x | x | − | ( | 1191 100 | × | 7 | − | 109 2 | ) | × | 4 | x | = | 1197 100 | × | 49 | × | 2 | − | 1191 100 | × | 49 | × | 7 |
| 方程左边 = | 893 75 | x | x | x | − | 1 2 | × | 1191 100 | × | 7 | x | x | + | 1 2 | × | 109 2 | x |
| = | 893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x |
| = | 893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x |
| = | 893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x |
| = | 893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x |
893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x | = | 1197 100 | × | 49 | × | 2 | − | 1191 100 | × | 49 | × | 7 |
| 方程右边 = | 58653 50 | − | 408513 100 |
| = | - | 291207 100 |
893 75 | x | x | x | − | 8337 200 | x | x | + | 109 4 | x | x | + | 1786 25 | x | = | - | 291207 100 |