| ( | 1001 1000 | − | 1 5000 | ) | x | + | ( | 999 1000 | − | 1 5000 | ) | ( | 1 | − | x | ) | = | 1 |
| Left side of the equation = | 1001 1000 | x | − | 1 5000 | x | + | ( | 999 1000 | − | 1 5000 | ) | ( | 1 | − | x | ) |
| = | 1251 1250 | x | + | ( | 999 1000 | − | 1 5000 | ) | ( | 1 | − | x | ) |
| = | 1251 1250 | x | + | 999 1000 | ( | 1 | − | x | ) | − | 1 5000 | ( | 1 | − | x | ) |
| = | 1251 1250 | x | + | 999 1000 | × | 1 | − | 999 1000 | x | − | 1 5000 | ( | 1 | − | x | ) |
| = | 1251 1250 | x | + | 999 1000 | − | 999 1000 | x | − | 1 5000 | ( | 1 | − | x | ) |
| = | 9 5000 | x | + | 999 1000 | − | 1 5000 | ( | 1 | − | x | ) |
| = | 9 5000 | x | + | 999 1000 | − | 1 5000 | × | 1 | + | 1 5000 | x |
| = | 9 5000 | x | + | 999 1000 | − | 1 5000 | + | 1 5000 | x |
| = | 1 500 | x | + | 2497 2500 |
1 500 | x | + | 2497 2500 | = | 1 |
1 500 | x | = | 1 | − | 2497 2500 |
1 500 | x | = | 3 2500 |
| x | = | 3 2500 | ÷ | 1 500 |
| = | 3 2500 | × | 500 |
| = | 3 5 | × | 1 |
| x | = | 3 5 |
| x | = | 0.6 |