( | 1 | ÷ | 50 | + | 1 | ÷ | 45 | ) | × | 20 | + | 1 | ÷ | 45 | × | X | = | 1 |
Left side of the equation = | ( | 1 | ÷ | 50 | + | 1 | ÷ | 45 | ) | × | 20 | + | 1 45 | X |
( | 1 | ÷ | 50 | + | 1 | ÷ | 45 | ) | × | 20 | + | 1 45 | X | = | 1 |
Left side of the equation = | 1 | ÷ | 50 | × | 20 | + | 1 | ÷ | 45 | × | 20 | + | 1 45 | X |
= | 2 5 | + | 4 9 | + | 1 45 | X |
= | 38 45 | + | 1 45 | X |
38 45 | + | 1 45 | X | = | 1 |
1 45 | X | = | 1 | − | 38 45 |
1 45 | X | = | 7 45 |
X | = | 7 45 | ÷ | 1 45 |
= | 7 45 | × | 45 |
= | 7 | × | 1 |
X | = | 7 |