| 100 | × | 49 5 | + | x | × | 88 | = | ( | 100 | + | x | ) | × | 25 |
| Left side of the equation = | 980 | + | x | × | 88 |
| 980 | + | 88 | x | = | ( | 100 | + | x | ) | × | 25 |
| Right side of the equation = | 100 | × | 25 | + | x | × | 25 |
| = | 2500 | + | x | × | 25 |
| 980 | + | 88 | x | = | 2500 | + | 25 | x |
| 88 | x | − | 25 | x | = | 2500 | − | 980 |
| 63 | x | = | 2500 | − | 980 |
| 63 | x | = | 1520 |
| x | = | 1520 | ÷ | 63 |
| = | 1520 | × | 1 63 |
| x | = | 1520 63 |
| x | = | 24.126984 |