| ( | 8 | × | 90 | + | X | − | 740 | − | 268 5 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | + | 35729 100 | = | 10609 25 |
| 方程左边 = | 8 | × | 90 | ( | 1 | − | 25 100 | ) | + | X | ( | 1 | − | 25 100 | ) | − | 740 | ( | 1 | − | 25 100 | ) | − | 268 5 | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 720 | ( | 1 | − | 25 100 | ) | + | X | ( | 1 | − | 25 100 | ) | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 720 | × | 1 | − | 720 | × | 25 100 | + | X | ( | 1 | − | 25 100 | ) | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 720 | − | 180 | + | X | ( | 1 | − | 25 100 | ) | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 89729 100 | + | X | ( | 1 | − | 25 100 | ) | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 89729 100 | + | X | × | 1 | − | X | × | 25 100 | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 89729 100 | + | 3 4 | X | − | 740 | ( | 1 | − | 25 100 | ) | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 89729 100 | + | 3 4 | X | − | 740 | × | 1 | + | 740 | × | 25 100 | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 89729 100 | + | 3 4 | X | − | 740 | + | 185 | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 34229 100 | + | 3 4 | X | − | 134 25 | ( | 1 | − | 25 100 | ) |
| = | 34229 100 | + | 3 4 | X | − | 134 25 | × | 1 | + | 134 25 | × | 25 100 |
| = | 34229 100 | + | 3 4 | X | − | 134 25 | + | 67 50 |
| = | 33827 100 | + | 3 4 | X |
33827 100 | + | 3 4 | X | = | 10609 25 |
3 4 | X | = | 10609 25 | − | 33827 100 |
3 4 | X | = | 8609 100 |
| X | = | 8609 100 | ÷ | 3 4 |
| = | 8609 100 | × | 4 3 |
| = | 8609 25 | × | 1 3 |
| X | = | 8609 75 |
| X | = | 114.786667 |