( | x | − | 1280 | ) | ÷ | 5200 | = | ( | x | − | 2000 | ) | ÷ | 4000 |
Left side of the equation = | x | × | 1 5200 | − | 1280 | × | 1 5200 |
= | x | × | 1 5200 | − | 16 65 |
1 5200 | x | − | 16 65 | = | ( | x | − | 2000 | ) | ÷ | 4000 |
Right side of the equation = | x | × | 1 4000 | − | 2000 | × | 1 4000 |
= | x | × | 1 4000 | − | 1 2 |
1 5200 | x | − | 16 65 | = | 1 4000 | x | − | 1 2 |
1 5200 | x | − | 1 4000 | x | = | - | 1 2 | + | 16 65 |
- | 3 52000 | x | = | - | 1 2 | + | 16 65 |
- | 3 52000 | x | = | - | 33 130 |
33 130 | = | 3 52000 | x |
3 52000 | x | = | 33 130 |
x | = | 33 130 | ÷ | 3 52000 |
= | 33 130 | × | 52000 3 |
= | 11 | × | 400 |
x | = | 4400 |