18 5 | + | 90 | t | = | 324 | ÷ | ( | 10 | + | 5 | t | ÷ | 3 | ) |
| Multiply both sides of the equation by: | ( | 10 | + | 5 | t | ÷ | 3 | ) |
18 5 | ( | 10 | + | 5 | t | ÷ | 3 | ) | + | 90 | t | ( | 10 | + | 5 | t | ÷ | 3 | ) | = | 324 |
18 5 | × | 10 | + | 18 5 | × | 5 | t | ÷ | 3 | + | 90 | t | ( | 10 | + | 5 | t | ÷ | 3 | ) | = | 324 |
| 36 | + | 6 | t | + | 90 | t | ( | 10 | + | 5 | t | ÷ | 3 | ) | = | 324 |
| 36 | + | 6 | t | + | 90 | t | × | 10 | + | 90 | t | × | 5 | t | ÷ | 3 | = | 324 |
| 36 | + | 6 | t | + | 900 | t | + | 150 | t | t | = | 324 |
| 36 | + | 906 | t | + | 150 | t | t | = | 324 |