| 150000000 | = | x | ÷ | ( | 4157 500 | × | 373 | ( | 7 200 | − | x | ) | ( | 27 1000 | − | x | ) | ) |
| Multiply both sides of the equation by: | ( | 4157 500 | × | 373 | ( | 7 200 | − | x | ) | ( | 27 1000 | − | x | ) | ) |
| 150000000 | ( | 4157 500 | × | 373 | ( | 7 200 | − | x | ) | ( | 27 1000 | − | x | ) | ) | = | x |
| 150000000 | × | 4157 500 | × | 373 | ( | 7 200 | − | x | ) | ( | 27 1000 | − | x | ) | = | x |