( | x | + | 1 | ) | × | 7 | = | ( | x | − | 1 | ) | × | 8 |
Left side of the equation = | x | × | 7 | + | 1 | × | 7 |
= | x | × | 7 | + | 7 |
7 | x | + | 7 | = | ( | x | − | 1 | ) | × | 8 |
Right side of the equation = | x | × | 8 | − | 1 | × | 8 |
= | x | × | 8 | − | 8 |
7 | x | + | 7 | = | 8 | x | − | 8 |
7 | x | − | 8 | x | = | - | 8 | − | 7 |
- | x | = | - | 8 | − | 7 |
- | x | = | - | 8 | − | 7 |
- | x | = | - | 15 |
15 | = | x |
x | = | 15 |