18 100 | X | + | 13 100 | ( | 1 | − | X | ) | = | 16 100 |
Left side of the equation = | 18 100 | X | + | 13 100 | × | 1 | − | 13 100 | X |
= | 18 100 | X | + | 13 100 | − | 13 100 | X |
= | 1 20 | X | + | 13 100 |
1 20 | X | + | 13 100 | = | 16 100 |
1 20 | X | = | 16 100 | − | 13 100 |
1 20 | X | = | 3 100 |
X | = | 3 100 | ÷ | 1 20 |
= | 3 100 | × | 20 |
= | 3 5 | × | 1 |
X | = | 3 5 |
X | = | 0.6 |