| x | = | 17 500 | + | 1 25 | ( | 70 | ÷ | 4 | × | x | − | 21 | ÷ | 40 | ) |
| Right side of the equation = | 17 500 | + | 1 25 | × | 70 | ÷ | 4 | × | x | − | 1 25 | × | 21 | ÷ | 40 |
| = | 17 500 | + | 7 10 | x | − | 21 1000 |
| = | 13 1000 | + | 7 10 | x |
| x | = | 13 1000 | + | 7 10 | x |
| x | − | 7 10 | x | = | 13 1000 |
3 10 | x | = | 13 1000 |
| x | = | 13 1000 | ÷ | 3 10 |
| = | 13 1000 | × | 10 3 |
| = | 13 100 | × | 1 3 |
| x | = | 13 300 |
| x | = | 0.043333 |