| ( | ( | 2500 | − | x | ) | × | 1 4 | + | 150 | ) | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | = | x | − | 1 20 | × | 2500 |
| Left side of the equation = | ( | 2500 | − | x | ) | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 2500 | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 625 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 625 | × | 1 | + | 625 | × | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 625 | + | 1 14 | ( | 2500 | − | x | ) | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 625 | + | 1 14 | × | 2500 | − | 1 14 | x | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 625 | + | 1250 7 | − | 1 14 | x | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 1 14 | x | − | x | × | 1 4 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 1 14 | x | − | x | × | 1 4 | × | 1 | − | x | × | 1 4 | × | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | + | 150 |
| = | 5625 7 | − | 1 14 | x | − | x | × | 1 4 | − | x | × | 1 35000 | ( | 2500 | − | x | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 9 28 | x | − | x | × | 1 35000 | ( | 2500 | − | x | ) | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 9 28 | x | − | x | × | 1 35000 | × | 2500 | + | x | × | 1 35000 | x | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 9 28 | x | − | x | × | 1 14 | + | x | × | 1 35000 | x | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 150 | ( | 1 | + | 2 | ( | 2500 | − | x | ) | ÷ | 17500 | ) |
| = | 5625 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 150 | × | 1 | + | 150 | × | 2 | ( | 2500 | − | x | ) | ÷ | 17500 |
| = | 5625 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 150 | + | 3 175 | ( | 2500 | − | x | ) |
| = | 6675 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 3 175 | ( | 2500 | − | x | ) |
| = | 6675 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 3 175 | × | 2500 | − | 3 175 | x |
| = | 6675 7 | − | 11 28 | x | + | x | × | 1 35000 | x | + | 300 7 | − | 3 175 | x |
| = | 6975 7 | − | 41 100 | x | + | x | × | 1 35000 | x |
6975 7 | − | 41 100 | x | + | x | × | 1 35000 | x | = | x | − | 1 20 | × | 2500 |
| Right side of the equation = | x | − | 125 |
6975 7 | − | 41 100 | x | + | x | × | 1 35000 | x | = | x | − | 125 |