22 25 | x | = | 600 | × | 9 10 | + | 4 5 | ( | x | − | 600 | ) |
| Right side of the equation = | 540 | + | 4 5 | ( | x | − | 600 | ) |
22 25 | x | = | 540 | + | 4 5 | ( | x | − | 600 | ) |
| Right side of the equation = | 540 | + | 4 5 | x | − | 4 5 | × | 600 |
| = | 540 | + | 4 5 | x | − | 480 |
| = | 60 | + | 4 5 | x |
22 25 | x | = | 60 | + | 4 5 | x |
22 25 | x | − | 4 5 | x | = | 60 |
2 25 | x | = | 60 |
| x | = | 60 | ÷ | 2 25 |
| = | 60 | × | 25 2 |
| = | 30 | × | 25 |
| x | = | 750 |