| y | = | 1000 | + | 3 4 | ( | y | − | 600 | ) | + | 800 | + | 750 |
| Right side of the equation = | 2550 | + | 3 4 | ( | y | − | 600 | ) |
| y | = | 2550 | + | 3 4 | ( | y | − | 600 | ) |
| Right side of the equation = | 2550 | + | 3 4 | y | − | 3 4 | × | 600 |
| = | 2550 | + | 3 4 | y | − | 450 |
| = | 2100 | + | 3 4 | y |
| y | = | 2100 | + | 3 4 | y |
| y | − | 3 4 | y | = | 2100 |
1 4 | y | = | 2100 |
| y | = | 2100 | ÷ | 1 4 |
| = | 2100 | × | 4 |
| y | = | 8400 |