| 30 | x | + | 17 | × | 1050 | = | 35 | x | − | 18 | × | 1050 |
| Left side of the equation = | 30 | x | + | 17850 |
| 30 | x | + | 17850 | = | 35 | x | − | 18 | × | 1050 |
| Right side of the equation = | 35 | x | − | 18900 |
| 30 | x | + | 17850 | = | 35 | x | − | 18900 |
| 30 | x | − | 35 | x | = | - | 18900 | − | 17850 |
| - | 5 | x | = | - | 18900 | − | 17850 |
| - | 5 | x | = | - | 36750 |
| 36750 | = | 5 | x |
| 5 | x | = | 36750 |
| x | = | 36750 | ÷ | 5 |
| = | 36750 | × | 1 5 |
| = | 7350 | × | 1 |
| x | = | 7350 |