7 | ( | 7 | ( | 5 | x | ÷ | 7 | − | 5 | ) | ÷ | 5 | − | 1 | ) | ÷ | 3 | = | 5 | x |
Left side of the equation = | 7 3 | ( | 7 | ( | 5 | x | ÷ | 7 | − | 5 | ) | ÷ | 5 | − | 1 | ) |
7 3 | ( | 7 | ( | 5 | x | ÷ | 7 | − | 5 | ) | ÷ | 5 | − | 1 | ) | = | 5 | x |
Left side of the equation = | 7 3 | × | 7 | ( | 5 | x | ÷ | 7 | − | 5 | ) | ÷ | 5 | − | 7 3 | × | 1 |
= | 49 15 | ( | 5 | x | ÷ | 7 | − | 5 | ) | − | 7 3 |
= | 49 15 | × | 5 | x | ÷ | 7 | − | 49 15 | × | 5 | − | 7 3 |
= | 7 3 | x | − | 49 3 | − | 7 3 |
= | 7 3 | x | − | 56 3 |
7 3 | x | − | 56 3 | = | 5 | x |
7 3 | x | − | 5 | x | = | 56 3 |
- | 8 3 | x | = | 56 3 |
- | 56 3 | = | 8 3 | x |
8 3 | x | = | - | 56 3 |
x | = | - | 56 3 | ÷ | 8 3 |
= | - | 56 3 | × | 3 8 |
= | - | 7 | × | 1 |
x | = | - | 7 |