| 200 | ÷ | 135 | + | 800 | ÷ | 141 | − | X | ÷ | 1000 | = | 1 200 | ( | 1060 | + | X | ) |
| Left side of the equation = | 40 27 | + | 800 141 | − | X | × | 1 1000 |
| = | 9080 1269 | − | 1 1000 | X |
9080 1269 | − | 1 1000 | X | = | 1 200 | ( | 1060 | + | X | ) |
| Right side of the equation = | 1 200 | × | 1060 | + | 1 200 | X |
| = | 53 10 | + | 1 200 | X |
9080 1269 | − | 1 1000 | X | = | 53 10 | + | 1 200 | X |
| - | 1 1000 | X | − | 1 200 | X | = | 53 10 | − | 9080 1269 |
| - | 3 500 | X | = | 53 10 | − | 9080 1269 |
| - | 3 500 | X | = | - | 23543 12690 |
23543 12690 | = | 3 500 | X |
3 500 | X | = | 23543 12690 |
| X | = | 23543 12690 | ÷ | 3 500 |
| = | 23543 12690 | × | 500 3 |
| = | 23543 1269 | × | 50 3 |
| X | = | 1177150 3807 |
| X | = | 309.206724 |