| 330 | x | = | 9 10 | x | ( | 66 | + | x | ) | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 9 10 | x | × | 66 | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 297 5 | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 297 5 | x | × | 289 100 | + | 297 5 | x | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 85833 500 | x | + | 297 5 | x | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 85833 500 | x | + | 297 5 | x | × | 66 | x | ÷ | ( | 66 | + | x | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 330 | x | = | 85833 500 | x | + | 19602 5 | x | x | ÷ | ( | 66 | + | x | ) | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 方程两边同时乘以: | ( | 66 | + | x | ) |
| 330 | x | ( | 66 | + | x | ) | = | 85833 500 | x | ( | 66 | + | x | ) | + | 19602 5 | x | x | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) | ( | 66 | + | x | ) |
| 330 | x | × | 66 | + | 330 | x | x | = | 85833 500 | x | ( | 66 | + | x | ) | + | 19602 5 | x | x | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) | ( | 66 | + | x | ) |
| 330 | x | × | 66 | + | 330 | x | x | = | 85833 500 | x | × | 66 | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 9 10 | x | x |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 9 10 | x | x | ( | 289 100 | + | ( | 66 | x | ÷ | ( | 66 | + | x | ) | ) | ) |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 9 10 | x | x | × | 289 100 |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 2601 1000 | x | x | ( | 66 | + | x | ) |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 2601 1000 | x | x | × | 66 |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 85833 500 | x | x | + | 2601 1000 |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 85833 500 | x | x | + | 2601 1000 |
| 21780 | x | + | 330 | x | x | = | 2832489 250 | x | + | 85833 500 | x | x | + | 19602 5 | x | x | + | 85833 500 | x | x | + | 2601 1000 |
| 方程两边同时乘以: | ( | 66 | + | x | ) |
| 21780 | x | ( | 66 | + | x | ) | + | 330 | x | x | ( | 66 | + | x | ) | = | 2832489 250 | x | ( | 66 | + | x | ) | + | 85833 500 | x | x | ( | 66 | + | x | ) | + | 19602 5 | x | x | ( | 66 | + | x | ) | + | 85833 500 |
| 21780 | x | × | 66 | + | 21780 | x | x | + | 330 | x | x | ( | 66 | + | x | ) | = | 2832489 250 | x | ( | 66 | + | x | ) | + | 85833 500 | x | x | ( | 66 | + | x | ) | + | 19602 5 | x | x | ( | 66 | + | x | ) | + | 85833 500 |
| 21780 | x | × | 66 | + | 21780 | x | x | + | 330 | x | x | ( | 66 | + | x | ) | = | 2832489 250 | x | × | 66 | + | 2832489 250 | x | x | + | 85833 500 | x | x | ( | 66 | + | x | ) | + | 19602 5 | x |
| 1437480 | x | + | 21780 | x | x | + | 330 | x | x | ( | 66 | + | x | ) | = | 93472137 125 | x | + | 2832489 250 | x | x | + | 85833 500 | x | x | ( | 66 | + | x | ) | + | 19602 5 | x | x |
| 1437480 | x | + | 21780 | x | x | + | 330 | x | x | × | 66 | + | 330 | x | x | = | 93472137 125 | x | + | 2832489 250 | x | x | + | 85833 500 | x | x | ( | 66 | + | x | ) | + | 19602 5 | x | x |
| 1437480 | x | + | 21780 | x | x | + | 330 | x | x | × | 66 | + | 330 | x | x | = | 93472137 125 | x | + | 2832489 250 | x | x | + | 85833 500 | x | x | × | 66 | + | 85833 500 | x | x |
| 1437480 | x | + | 21780 | x | x | + | 21780 | x | x | + | 330 | x | x | x | = | 93472137 125 | x | + | 2832489 250 | x | x | + | 2832489 250 | x | x | + | 85833 500 | x | x | x |