86818 25 | × | 2200 | + | 178463 50 | ( | x | + | 30 | ) | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) | = | 181719 10 | × | 1950 |
| 方程左边 = | 7639984 | + | 178463 50 | ( | x | + | 30 | ) | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| 7639984 | + | 178463 50 | ( | x | + | 30 | ) | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) | = | 181719 10 | × | 1950 |
| 方程左边 = | 7639984 | + | 178463 50 | x | + | 178463 50 | × | 30 | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 7639984 | + | 178463 50 | x | + | 535389 5 | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 38735309 5 | + | 178463 50 | x | + | 357033 100 | ( | x | + | 60 | ) | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 38735309 5 | + | 178463 50 | x | + | 357033 100 | x | + | 357033 100 | × | 60 | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 38735309 5 | + | 178463 50 | x | + | 357033 100 | x | + | 1071099 5 | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 39806408 5 | + | 713959 100 | x | + | 370249 100 | ( | x | + | 90 | ) | + | 38571 10 | ( | x | + | 120 | ) |
| = | 39806408 5 | + | 713959 100 | x | + | 370249 100 | x | + | 370249 100 | × | 90 | + | 38571 10 | ( | x | + | 120 | ) |
| = | 39806408 5 | + | 713959 100 | x | + | 370249 100 | x | + | 3332241 10 | + | 38571 10 | ( | x | + | 120 | ) |
| = | 82945057 10 | + | 271052 25 | x | + | 38571 10 | ( | x | + | 120 | ) |
| = | 82945057 10 | + | 271052 25 | x | + | 38571 10 | x | + | 38571 10 | × | 120 |
| = | 82945057 10 | + | 271052 25 | x | + | 38571 10 | x | + | 462852 |
| = | 87573577 10 | + | 734959 50 | x |
87573577 10 | + | 734959 50 | x | = | 181719 10 | × | 1950 |
| 方程右边 = | 35435205 |
87573577 10 | + | 734959 50 | x | = | 35435205 |
734959 50 | x | = | 35435205 | − | 87573577 10 |
734959 50 | x | = | 266778473 10 |
| x | = | 266778473 10 | ÷ | 734959 50 |
| = | 266778473 10 | × | 50 734959 |
| = | 266778473 | × | 5 734959 |
| x | = | 1333892365 734959 |
| x | = | 1814.920785 |