| ( | ( | x | − | 400 | − | 2000 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ) | ÷ | ( | 6000 | + | 2000 | ) | = | ( | ( | x | − | 400 | − | 3000 | × | 15 100 | ) | ( | 1 | − | 25 100 | ) | ) | ÷ | ( | 6000 | + | 1000 | ) |
| Multiply both sides of the equation by: | ( | 6000 | + | 2000 | ) | , | ( | 6000 | + | 1000 | ) |
| ( | ( | x | − | 400 | − | 2000 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ) | ( | 6000 | + | 1000 | ) | = | ( | ( | x | − | 400 | − | 3000 | × | 15 100 | ) | ( | 1 | − | 25 100 | ) | ) | ( | 6000 | + | 2000 | ) |
| ( | x | − | 400 | − | 2000 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | ( | ( | x | − | 400 | − | 3000 | × | 15 100 | ) | ( | 1 | − | 25 100 | ) | ) | ( | 6000 | + | 2000 | ) |
| ( | x | − | 400 | − | 2000 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | ( | x | − | 400 | − | 3000 | × | 15 100 | ) | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 2000 | × | 10 100 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | ( | x | − | 400 | − | 3000 | × | 15 100 | ) | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 2000 | × | 10 100 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 3000 | × | 15 100 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | × | 1 | ( | 6000 | + | 1000 | ) | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | × | 1 | ( | 6000 | + | 1000 | ) | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | × | 1 | ( | 6000 | + | 2000 | ) | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | × | 1 | × | 6000 | + | x | × | 1 | × | 1000 | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | × | 1 | ( | 6000 | + | 2000 | ) | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | × | 1 | × | 6000 | + | x | × | 1 | × | 1000 | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | x | × | 1 | × | 6000 | + | x | × | 1 | × | 2000 | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| x | × | 6000 | + | x | × | 1000 | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | = | x | × | 6000 | + | x | × | 2000 | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) |
| 7000 | x | − | x | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 8000 | x | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 7000 | x | − | x | × | 25 100 | × | 6000 | − | x | × | 25 100 | × | 1000 | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | = | 8000 | x | − | x | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 7000 | x | − | x | × | 25 100 | × | 6000 | − | x | × | 25 100 | × | 1000 | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | = | 8000 | x | − | x | × | 25 100 | × | 6000 | − | x | × | 25 100 | × | 2000 | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 |
| 7000 | x | − | x | × | 1500 | − | x | × | 250 | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 8000 | x | − | x | × | 1500 | − | x | × | 500 | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | × | 1 | ( | 6000 | + | 1000 | ) | + | 400 | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | × | 1 | ( | 6000 | + | 1000 | ) | + | 400 | × | 25 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | × | 1 | ( | 6000 | + | 2000 | ) | + | 400 | × | 25 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | ( | 6000 | + | 1000 | ) | + | 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | ( | 6000 | + | 2000 | ) | + | 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | × | 6000 | − | 400 | × | 1000 | + | 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | ( | 6000 | + | 2000 | ) | + | 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 400 | × | 6000 | − | 400 | × | 1000 | + | 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 400 | × | 6000 | − | 400 | × | 2000 | + | 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 2400000 | − | 400000 | + | 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 2400000 | − | 800000 | + | 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |
| 5250 | x | − | 2800000 | + | 100 | ( | 6000 | + | 1000 | ) | − | 200 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 1000 | ) | = | 6000 | x | − | 3200000 | + | 100 | ( | 6000 | + | 2000 | ) | − | 450 | ( | 1 | − | 25 100 | ) | ( | 6000 | + | 2000 | ) |