| 1800 | ( | 19 16 | x | + | 7 | ) | ÷ | 5 | = | 5000 |
| 方程左边 = | 360 | ( | 19 16 | x | + | 7 | ) |
| 360 | ( | 19 16 | x | + | 7 | ) | = | 5000 |
| 方程左边 = | 360 | × | 19 16 | x | + | 360 | × | 7 |
| = | 855 2 | x | + | 2520 |
855 2 | x | + | 2520 | = | 5000 |
855 2 | x | = | 5000 | − | 2520 |
855 2 | x | = | 2480 |
| x | = | 2480 | ÷ | 855 2 |
| = | 2480 | × | 2 855 |
| = | 496 | × | 2 171 |
| x | = | 992 171 |
| x | = | 5.80117 |