| ( | ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 15 | X | × | 7 10 | × | 11 250 | ) | ÷ | ( | 15 | X | × | 3 10 | + | 15 | X | × | 3 100 | ) | = | 19 500 |
| Multiply both sides of the equation by: | ( | 15 | X | × | 3 10 | + | 15 | X | × | 3 100 | ) |
| ( | ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 15 | X | × | 7 10 | × | 11 250 | ) | = | 19 500 | ( | 15 | X | × | 3 10 | + | 15 | X | × | 3 100 | ) |
| ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 15 | X | × | 7 10 | × | 11 250 | = | 19 500 | ( | 15 | X | × | 3 10 | + | 15 | X | × | 3 100 | ) |
| ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 15 | X | × | 7 10 | × | 11 250 | = | 19 500 | × | 15 | X | × | 3 10 | + | 19 500 | × | 15 | X | × | 3 100 |
| ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 231 500 | X | = | 171 1000 | X | + | 171 10000 | X |
| ( | 63000 | − | 4500 | − | 3000 | ) | × | 12 | − | 231 500 | X | = | 1881 10000 | X |
| 63000 | × | 12 | − | 4500 | × | 12 | − | 3000 | × | 12 | − | 231 500 | X | = | 1881 10000 | X |
| 756000 | − | 54000 | − | 36000 | − | 231 500 | X | = | 1881 10000 | X |
| 666000 | − | 231 500 | X | = | 1881 10000 | X |
| - | 231 500 | X | − | 1881 10000 | X | = | - | 666000 |
| - | 6501 10000 | X | = | - | 666000 |
| 666000 | = | 6501 10000 | X |
6501 10000 | X | = | 666000 |
| X | = | 666000 | ÷ | 6501 10000 |
| = | 666000 | × | 10000 6501 |
| = | 222000 | × | 10000 2167 |
| X | = | 2220000000 2167 |
| X | = | 1024457.775727 |