| 160 | x | + | ( | 2000 | − | x | ) | × | 60 | = | 1500000000 |
| 方程左边 = | 160 | x | + | 2000 | × | 60 | − | x | × | 60 |
| = | 160 | x | + | 120000 | − | x | × | 60 |
| = | 100 | x | + | 120000 |
| 100 | x | + | 120000 | = | 1500000000 |
| 100 | x | = | 1500000000 | − | 120000 |
| 100 | x | = | 1499880000 |
| x | = | 1499880000 | ÷ | 100 |
| = | 1499880000 | × | 1 100 |
| = | 14998800 | × | 1 |
| x | = | 14998800 |