| ( | 2 | x | + | 31 | + | 0 | ÷ | 4 | ) | × | 100 | ÷ | 100 | + | 10 | + | 100 | = | 344 |
| 方程左边 = | ( | 2 | x | + | 31 | + | 0 | ÷ | 4 | ) | × | 1 | + | 10 | + | 100 |
| = | ( | 2 | x | + | 31 | + | 0 | ÷ | 4 | ) | × | 1 | + | 110 |
| ( | 2 | x | + | 31 | + | 0 | ÷ | 4 | ) | × | 1 | + | 110 | = | 344 |
| 方程左边 = | 2 | x | × | 1 | + | 31 | × | 1 | + | 0 | ÷ | 4 | × | 1 | + | 110 |
| = | 2 | x | + | 31 | + | 0 | + | 110 |
| = | 2 | x | + | 141 |
| 2 | x | + | 141 | = | 344 |
| 2 | x | = | 344 | − | 141 |
| 2 | x | = | 203 |
| x | = | 203 | ÷ | 2 |
| = | 203 | × | 1 2 |
| x | = | 203 2 |
| x | = | 101.5 |