( | x | − | 1 | ) | × | 50 | = | ( | x | + | 1 2 | ) | × | 60 |
Left side of the equation = | x | × | 50 | − | 1 | × | 50 |
= | x | × | 50 | − | 50 |
50 | x | − | 50 | = | ( | x | + | 1 2 | ) | × | 60 |
Right side of the equation = | x | × | 60 | + | 1 2 | × | 60 |
= | x | × | 60 | + | 30 |
50 | x | − | 50 | = | 60 | x | + | 30 |
50 | x | − | 60 | x | = | 30 | + | 50 |
- | 10 | x | = | 30 | + | 50 |
- | 10 | x | = | 80 |
- | 80 | = | 10 | x |
10 | x | = | - | 80 |
x | = | - | 80 | ÷ | 10 |
= | - | 80 | × | 1 10 |
= | - | 8 | × | 1 |
x | = | - | 8 |