( | 27 | − | x | ) | × | 6 | = | ( | 23 | − | x | ) | × | 9 |
Left side of the equation = | 27 | × | 6 | − | x | × | 6 |
= | 162 | − | x | × | 6 |
162 | − | 6 | x | = | ( | 23 | − | x | ) | × | 9 |
Right side of the equation = | 23 | × | 9 | − | x | × | 9 |
= | 207 | − | x | × | 9 |
162 | − | 6 | x | = | 207 | − | 9 | x |
- | 6 | x | + | 9 | x | = | 207 | − | 162 |
3 | x | = | 207 | − | 162 |
3 | x | = | 45 |
x | = | 45 | ÷ | 3 |
= | 45 | × | 1 3 |
= | 15 | × | 1 |
x | = | 15 |