| ( | 19 20 | + | x | ) | × | 51 50 | = | 1 | + | x |
| Left side of the equation = | 19 20 | × | 51 50 | + | x | × | 51 50 |
| = | 969 1000 | + | x | × | 51 50 |
969 1000 | + | 51 50 | x | = | 1 | + | x |
51 50 | x | − | x | = | 1 | − | 969 1000 |
1 50 | x | = | 1 | − | 969 1000 |
1 50 | x | = | 31 1000 |
| x | = | 31 1000 | ÷ | 1 50 |
| = | 31 1000 | × | 50 |
| = | 31 20 | × | 1 |
| x | = | 31 20 |
| x | = | 1.55 |