30 100 | = | ( | 1 5 | × | 2 | ( | 720 | ÷ | X | ) | × | 2 5 | ) | ÷ | 3 5 |
30 100 | = | 1 5 | × | 2 | ( | 720 | ÷ | X | ) | × | 2 5 | ÷ | 3 5 |
30 100 | = | 4 15 | ( | 720 | ÷ | X | ) |
30 100 | = | 4 15 | × | 720 | ÷ | X |
30 100 | = | 192 | ÷ | X |
Multiply both sides of the equation by: | X |
30 100 | X | = | 192 |
X | = | 192 | ÷ | 30 100 |
= | 192 | × | 100 30 |
= | 32 | × | 100 5 |
X | = | 3200 5 |
X | = | 640 |