| 3 | x | + | 4 | + | ( | 99 | − | x | ) | × | 1 4 | = | 100 |
| Left side of the equation = | 3 | x | + | 4 | + | 99 | × | 1 4 | − | x | × | 1 4 |
| = | 3 | x | + | 4 | + | 99 4 | − | x | × | 1 4 |
| = | 11 4 | x | + | 115 4 |
11 4 | x | + | 115 4 | = | 100 |
11 4 | x | = | 100 | − | 115 4 |
11 4 | x | = | 285 4 |
| x | = | 285 4 | ÷ | 11 4 |
| = | 285 4 | × | 4 11 |
| = | 285 | × | 1 11 |
| x | = | 285 11 |
| x | = | 25.909091 |