( | x | − | 1600 | − | 900 | ) | ÷ | 10000 | = | ( | x | − | 1600 | ) | ÷ | 12000 |
Left side of the equation = | x | × | 1 10000 | − | 1600 | × | 1 10000 | − | 900 | × | 1 10000 |
= | x | × | 1 10000 | − | 4 25 | − | 9 100 |
= | 1 10000 | x | − | 1 4 |
1 10000 | x | − | 1 4 | = | ( | x | − | 1600 | ) | ÷ | 12000 |
Right side of the equation = | x | × | 1 12000 | − | 1600 | × | 1 12000 |
= | x | × | 1 12000 | − | 2 15 |
1 10000 | x | − | 1 4 | = | 1 12000 | x | − | 2 15 |
1 10000 | x | − | 1 12000 | x | = | - | 2 15 | + | 1 4 |
1 60000 | x | = | - | 2 15 | + | 1 4 |
1 60000 | x | = | 7 60 |
x | = | 7 60 | ÷ | 1 60000 |
= | 7 60 | × | 60000 |
= | 7 | × | 1000 |
x | = | 7000 |