| ( | 3 40 | − | x | ) | ÷ | 37 500 | = | 51 10 | ÷ | 351 10 |
| Left side of the equation = | 3 40 | × | 500 37 | − | x | × | 500 37 |
| = | 75 74 | − | x | × | 500 37 |
75 74 | − | 500 37 | x | = | 51 10 | ÷ | 351 10 |
| Right side of the equation = | 17 117 |
75 74 | − | 500 37 | x | = | 17 117 |
| - | 500 37 | x | = | 17 117 | − | 75 74 |
| - | 500 37 | x | = | - | 7517 8658 |
7517 8658 | = | 500 37 | x |
500 37 | x | = | 7517 8658 |
| x | = | 7517 8658 | ÷ | 500 37 |
| = | 7517 8658 | × | 37 500 |
| = | 7517 234 | × | 1 500 |
| x | = | 7517 117000 |
| x | = | 0.064248 |