103 100 | x | + | 4659 100 | + | 1 | + | 54 25 | + | ( | 103 100 | x | + | 4659 100 | + | 1 | + | 54 25 | ) | × | 3 20 | = | 1456567 6400 |
| 方程左边 = | 103 100 | x | + | 199 4 | + | ( | 103 100 | x | + | 4659 100 | + | 1 | + | 54 25 | ) | × | 3 20 |
103 100 | x | + | 199 4 | + | ( | 103 100 | x | + | 4659 100 | + | 1 | + | 54 25 | ) | × | 3 20 | = | 1456567 6400 |
| 方程左边 = | 103 100 | x | + | 199 4 | + | 103 100 | x | × | 3 20 | + | 4659 100 | × | 3 20 | + | 1 | × | 3 20 | + | 54 25 | × | 3 20 |
| = | 103 100 | x | + | 199 4 | + | 309 2000 | x | + | 13977 2000 | + | 3 20 | + | 81 250 |
| = | 2369 2000 | x | + | 4577 80 |
2369 2000 | x | + | 4577 80 | = | 1456567 6400 |
2369 2000 | x | = | 1456567 6400 | − | 4577 80 |
2369 2000 | x | = | 1090407 6400 |
| x | = | 1090407 6400 | ÷ | 2369 2000 |
| = | 1090407 6400 | × | 2000 2369 |
| = | 47409 16 | × | 5 103 |
| x | = | 237045 1648 |
| x | = | 143.837985 |