| 130 | x | × | 2 | + | 31 5 | x | − | 857 500 | = | 0 |
| Left side of the equation = | 260 | x | + | 31 5 | x | − | 857 500 |
| = | 1331 5 | x | − | 857 500 |
1331 5 | x | − | 857 500 | = | 0 |
1331 5 | x | = | 0 | + | 857 500 |
1331 5 | x | = | 857 500 |
| x | = | 857 500 | ÷ | 1331 5 |
| = | 857 500 | × | 5 1331 |
| = | 857 100 | × | 1 1331 |
| x | = | 857 133100 |
| x | = | 0.006439 |