| ( | x | + | 302 | ) | ÷ | ( | x | + | 524 | ) | = | 13 20 |
| Multiply both sides of the equation by: | ( | x | + | 524 | ) |
| ( | x | + | 302 | ) | = | 13 20 | ( | x | + | 524 | ) |
| x | + | 302 | = | 13 20 | ( | x | + | 524 | ) |
| x | + | 302 | = | 13 20 | x | + | 13 20 | × | 524 |
| x | + | 302 | = | 13 20 | x | + | 1703 5 |
| x | − | 13 20 | x | = | 1703 5 | − | 302 |
7 20 | x | = | 1703 5 | − | 302 |
7 20 | x | = | 193 5 |
| x | = | 193 5 | ÷ | 7 20 |
| = | 193 5 | × | 20 7 |
| = | 193 | × | 4 7 |
| x | = | 772 7 |
| x | = | 110.285714 |