| ( | 12813 500 | + | x | ) | × | 63 20 | = | 51253 1000 | + | 71679 1000 | − | x |
| Left side of the equation = | 12813 500 | × | 63 20 | + | x | × | 63 20 |
| = | 807219 10000 | + | x | × | 63 20 |
807219 10000 | + | 63 20 | x | = | 51253 1000 | + | 71679 1000 | − | x |
| Right side of the equation = | 30733 250 | − | x |
807219 10000 | + | 63 20 | x | = | 30733 250 | − | x |
63 20 | x | + | x | = | 30733 250 | − | 807219 10000 |
83 20 | x | = | 30733 250 | − | 807219 10000 |
83 20 | x | = | 422101 10000 |
| x | = | 422101 10000 | ÷ | 83 20 |
| = | 422101 10000 | × | 20 83 |
| = | 422101 500 | × | 1 83 |
| x | = | 422101 41500 |
| x | = | 10.171108 |