20 | ( | x | − | 32 | ) | = | 5 | ( | x | − | 53 | ) |
Left side of the equation = | 20 | x | − | 20 | × | 32 |
= | 20 | x | − | 640 |
20 | x | − | 640 | = | 5 | ( | x | − | 53 | ) |
Right side of the equation = | 5 | x | − | 5 | × | 53 |
= | 5 | x | − | 265 |
20 | x | − | 640 | = | 5 | x | − | 265 |
20 | x | − | 5 | x | = | - | 265 | + | 640 |
15 | x | = | - | 265 | + | 640 |
15 | x | = | 375 |
x | = | 375 | ÷ | 15 |
= | 375 | × | 1 15 |
= | 25 | × | 1 |
x | = | 25 |