53 10 | + | ( | 10 | + | 14 5 | x | + | x | ÷ | 40 | × | 1 2 | × | 60 | ) | × | 4 5 | = | 12 | + | 5 2 | x | + | x | ÷ | 40 | × | 2 5 | × | 60 | − | 93 10 |
| 方程左边 = | 53 10 | + | 10 | × | 4 5 | + | 14 5 | x | × | 4 5 | + | x | ÷ | 40 | × | 1 2 | × | 60 | × | 4 5 |
| = | 53 10 | + | 8 | + | 56 25 | x | + | x | × | 3 5 |
| = | 133 10 | + | 71 25 | x |
133 10 | + | 71 25 | x | = | 12 | + | 5 2 | x | + | x | ÷ | 40 | × | 2 5 | × | 60 | − | 93 10 |
| 方程右边 = | 12 | + | 5 2 | x | + | x | × | 3 5 | − | 93 10 |
| = | 27 10 | + | 31 10 | x |
133 10 | + | 71 25 | x | = | 27 10 | + | 31 10 | x |
71 25 | x | − | 31 10 | x | = | 27 10 | − | 133 10 |
| - | 13 50 | x | = | 27 10 | − | 133 10 |
| - | 13 50 | x | = | - | 53 5 |
53 5 | = | 13 50 | x |
13 50 | x | = | 53 5 |
| x | = | 53 5 | ÷ | 13 50 |
| = | 53 5 | × | 50 13 |
| = | 53 | × | 10 13 |
| x | = | 530 13 |
| x | = | 40.769231 |