| ( | 163271 | + | 61418 | + | 20000 | ) | + | ( | ( | 163271 | + | 61418 | + | 20000 | ) | x | × | 31 1000 | ) | = | ( | ( | 7603 | + | 4751 | ) | × | 12 | × | 13 500 | ) | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| 方程左边 = | 163271 | + | 61418 | + | 20000 | + | ( | ( | 163271 | + | 61418 | + | 20000 | ) | x | × | 31 1000 | ) |
| = | 244689 | + | ( | ( | 163271 | + | 61418 | + | 20000 | ) | x | × | 31 1000 | ) |
| = | 244689 | + | ( | 163271 | + | 61418 | + | 20000 | ) | x | × | 31 1000 |
| = | 244689 | + | 163271 | x | × | 31 1000 | + | 61418 | x | × | 31 1000 | + | 20000 | x | × | 31 1000 |
| = | 244689 | + | 5061401 1000 | x | + | 951979 500 | x | + | 620 | x |
| = | 244689 | + | 7585359 1000 | x |
| 244689 | + | 7585359 1000 | x | = | ( | ( | 7603 | + | 4751 | ) | × | 12 | × | 13 500 | ) | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| 方程右边 = | ( | 7603 | + | 4751 | ) | × | 12 | × | 13 500 | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| = | ( | 7603 | + | 4751 | ) | × | 39 125 | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| = | 7603 | × | 39 125 | + | 4751 | × | 39 125 | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| = | 296517 125 | + | 185289 125 | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| = | 481806 125 | + | ( | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 | ) |
| = | 481806 125 | + | ( | 7603 | + | 4751 | ) | × | 12 | x | × | 93 2000 |
| = | 481806 125 | + | ( | 7603 | + | 4751 | ) | × | 279 500 | x |
| = | 481806 125 | + | 7603 | × | 279 500 | x | + | 4751 | × | 279 500 | x |
| = | 481806 125 | + | 2121237 500 | x | + | 1325529 500 | x |
| = | 481806 125 | + | 1723383 250 | x |
| 244689 | + | 7585359 1000 | x | = | 481806 125 | + | 1723383 250 | x |
7585359 1000 | x | − | 1723383 250 | x | = | 481806 125 | − | 244689 |
691827 1000 | x | = | 481806 125 | − | 244689 |
691827 1000 | x | = | - | 30104319 125 |
| x | = | - | 30104319 125 | ÷ | 691827 1000 |
| = | - | 30104319 125 | × | 1000 691827 |
| = | - | 10034773 | × | 8 230609 |
| x | = | - | 80278184 230609 |
| x | = | - 348.113838 |