| ( | 2 5 | X | − | 3435 | ) | × | 3 4 | ÷ | 500 | = | ( | 2 5 | X | − | 3195 | ) | × | 3 4 | ÷ | 750 |
| Left side of the equation = | ( | 2 5 | X | − | 3435 | ) | × | 3 2000 |
| ( | 2 5 | X | − | 3435 | ) | × | 3 2000 | = | ( | 2 5 | X | − | 3195 | ) | × | 3 4 | ÷ | 750 |
| Left side of the equation = | 2 5 | X | × | 3 2000 | − | 3435 | × | 3 2000 |
| = | 3 5000 | X | − | 2061 400 |
3 5000 | X | − | 2061 400 | = | ( | 2 5 | X | − | 3195 | ) | × | 3 4 | ÷ | 750 |
| Right side of the equation = | ( | 2 5 | X | − | 3195 | ) | × | 1 1000 |
3 5000 | X | − | 2061 400 | = | ( | 2 5 | X | − | 3195 | ) | × | 1 1000 |
| Right side of the equation = | 2 5 | X | × | 1 1000 | − | 3195 | × | 1 1000 |
| = | 1 2500 | X | − | 639 200 |
3 5000 | X | − | 2061 400 | = | 1 2500 | X | − | 639 200 |
3 5000 | X | − | 1 2500 | X | = | - | 639 200 | + | 2061 400 |
1 5000 | X | = | - | 639 200 | + | 2061 400 |
1 5000 | X | = | 783 400 |
| X | = | 783 400 | ÷ | 1 5000 |
| = | 783 400 | × | 5000 |
| = | 783 2 | × | 25 |
| X | = | 19575 2 |
| X | = | 9787.5 |