| ( | 1 | + | 3 10 | × | 10 | x | ) | ( | 1 | + | x | ) | ÷ | 3 10 | = | 9 50 |
| Left side of the equation = | 1 | ( | 1 | + | x | ) | × | 10 3 | + | 3 10 | × | 10 | x | ( | 1 | + | x | ) | × | 10 3 |
| = | 10 3 | ( | 1 | + | x | ) | + | 10 | x | ( | 1 | + | x | ) |
| = | 10 3 | × | 1 | + | 10 3 | x | + | 10 | x | ( | 1 | + | x | ) |
| = | 10 3 | + | 10 3 | x | + | 10 | x | ( | 1 | + | x | ) |
| = | 10 3 | + | 10 3 | x | + | 10 | x | × | 1 | + | 10 | x | x |
| = | 10 3 | + | 10 3 | x | + | 10 | x | + | 10 | x | x |
| = | 10 3 | + | 40 3 | x | + | 10 | x | x |
10 3 | + | 40 3 | x | + | 10 | x | x | = | 9 50 |