69 5000 | x | × | 3 | − | 76223 10000 | x | × | 2 | + | 6348 5 | x | + | 204578 | = | 269676 |
| 方程左边 = | 207 5000 | x | − | 76223 5000 | x | + | 6348 5 | x | + | 204578 |
| = | 783998 625 | x | + | 204578 |
783998 625 | x | + | 204578 | = | 269676 |
783998 625 | x | = | 269676 | − | 204578 |
783998 625 | x | = | 65098 |
| x | = | 65098 | ÷ | 783998 625 |
| = | 65098 | × | 625 783998 |
| = | 32549 | × | 625 391999 |
| x | = | 20343125 391999 |
| x | = | 51.895859 |