| 100 | = | 3 | ÷ | 5 | + | ( | 3 | ÷ | 5 | + | 6 | ) | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| Right side of the equation = | 3 5 | + | ( | 3 | ÷ | 5 | + | 6 | ) | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| 100 | = | 3 5 | + | ( | 3 | ÷ | 5 | + | 6 | ) | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| Right side of the equation = | 3 5 | + | 3 | ÷ | 5 | + | 6 | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| = | 3 5 | + | 3 5 | + | 6 | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| = | 36 5 | + | ( | 1 | ÷ | 3 | + | 2 | ) | − | x |
| = | 36 5 | + | 1 | ÷ | 3 | + | 2 | − | x |
| = | 36 5 | + | 1 3 | + | 2 | − | x |
| = | 143 15 | − | x |
| 100 | = | 143 15 | − | x |
| x | = | 143 15 | − | 100 |
| x | = | - | 1357 15 |