| x | − | 1001 50 | − | ( | x | − | 1001 50 | ) | × | 1 20 | = | 2827 50 |
| Left side of the equation = | x | − | 1001 50 | − | x | × | 1 20 | + | 1001 50 | × | 1 20 |
| = | x | − | 1001 50 | − | x | × | 1 20 | + | 1001 1000 |
| = | 19 20 | x | − | 19019 1000 |
19 20 | x | − | 19019 1000 | = | 2827 50 |
19 20 | x | = | 2827 50 | + | 19019 1000 |
19 20 | x | = | 75559 1000 |
| x | = | 75559 1000 | ÷ | 19 20 |
| = | 75559 1000 | × | 20 19 |
| = | 75559 50 | × | 1 19 |
| x | = | 75559 950 |
| x | = | 79.535789 |