| X | − | 3 10 | X | − | 1 20 | X | − | 3 | = | 981 50 | + | 1 5 | × | 981 50 |
| Left side of the equation = | 13 20 | X | − | 3 |
13 20 | X | − | 3 | = | 981 50 | + | 1 5 | × | 981 50 |
| Right side of the equation = | 981 50 | + | 981 250 |
| = | 2943 125 |
13 20 | X | − | 3 | = | 2943 125 |
13 20 | X | = | 2943 125 | + | 3 |
13 20 | X | = | 3318 125 |
| X | = | 3318 125 | ÷ | 13 20 |
| = | 3318 125 | × | 20 13 |
| = | 3318 25 | × | 4 13 |
| X | = | 13272 325 |
| X | = | 40.836923 |