19 20 | × | 48 | × | 1000 | x | = | 1131 | × | 360 | + | 4547 10000 | × | 1000 | ( | 100 | − | x | ) |
| Left side of the equation = | 45600 | x |
| 45600 | x | = | 1131 | × | 360 | + | 4547 10000 | × | 1000 | ( | 100 | − | x | ) |
| Right side of the equation = | 407160 | + | 4547 10 | ( | 100 | − | x | ) |
| 45600 | x | = | 407160 | + | 4547 10 | ( | 100 | − | x | ) |
| Right side of the equation = | 407160 | + | 4547 10 | × | 100 | − | 4547 10 | x |
| = | 407160 | + | 45470 | − | 4547 10 | x |
| = | 452630 | − | 4547 10 | x |
| 45600 | x | = | 452630 | − | 4547 10 | x |
| 45600 | x | + | 4547 10 | x | = | 452630 |
460547 10 | x | = | 452630 |
| x | = | 452630 | ÷ | 460547 10 |
| = | 452630 | × | 10 460547 |
| x | = | 4526300 460547 |
| x | = | 9.828096 |