12 5 | + | x | ÷ | 12 | + | x | = | 1 | ÷ | 4 |
| Left side of the equation = | 12 5 | + | 13 12 | x |
12 5 | + | 13 12 | x | = | 1 | ÷ | 4 |
| Right side of the equation = | 1 4 |
12 5 | + | 13 12 | x | = | 1 4 |
13 12 | x | = | 1 4 | − | 12 5 |
13 12 | x | = | - | 43 20 |
| x | = | - | 43 20 | ÷ | 13 12 |
| = | - | 43 20 | × | 12 13 |
| = | - | 43 5 | × | 3 13 |
| x | = | - | 129 65 |
| x | = | - 1.984615 |