| ( | X | − | 117 100 | X | × | 3 20 | ) | + | ( | 2 25 | + | 7 50 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X | + | 79 50 | + | 1 4 | ) | + | 279 50 | = | 1394 25 |
| 方程左边 = | X | − | 117 100 | X | × | 3 20 | + | ( | 2 25 | + | 7 50 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X | + | 79 50 | + | 1 4 | ) | + | 279 50 |
| = | X | − | 351 2000 | X | + | ( | 2 25 | + | 7 50 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X | + | 79 50 | + | 1 4 | ) | + | 279 50 |
| = | 1649 2000 | X | + | ( | 2 25 | + | 7 50 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X | + | 79 50 | + | 1 4 | ) | + | 279 50 |
| = | 1649 2000 | X | + | 2 25 | + | 7 50 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X | + | 79 50 | + | 1 4 | + | 279 50 |
| = | 1649 2000 | X | + | 763 100 | + | ( | 13 200 | ÷ | 360 | ) | × | 75 | X |
| = | 1649 2000 | X | + | 763 100 | + | 13 200 | ÷ | 360 | × | 75 | X |
| = | 1649 2000 | X | + | 763 100 | + | 13 960 | X |
| = | 20113 24000 | X | + | 763 100 |
20113 24000 | X | + | 763 100 | = | 1394 25 |
20113 24000 | X | = | 1394 25 | − | 763 100 |
20113 24000 | X | = | 4813 100 |
| X | = | 4813 100 | ÷ | 20113 24000 |
| = | 4813 100 | × | 24000 20113 |
| = | 4813 | × | 240 20113 |
| X | = | 1155120 20113 |
| X | = | 57.431512 |