| 1 | ÷ | 3 | × | 15707963 5000000 | × | 6 | ( | 63 20 | × | 63 20 | + | 16 5 | × | 16 5 | + | 16 5 | × | 63 20 | ) | = | x |
| 方程左边 = | 15707963 2500000 | ( | 63 20 | × | 63 20 | + | 16 5 | × | 16 5 | + | 16 5 | × | 63 20 | ) |
15707963 2500000 | ( | 63 20 | × | 63 20 | + | 16 5 | × | 16 5 | + | 16 5 | × | 63 20 | ) | = | x |
| 方程左边 = | 15707963 2500000 | × | 63 20 | × | 63 20 | + | 15707963 2500000 | × | 16 5 | × | 16 5 | + | 15707963 2500000 | × | 16 5 | × | 63 20 |