| ( | 50000 | ( | 1 | + | 3411 10000 | ) | + | y | ) | × | 12 100 | = | 50000 | × | 3411 10000 |
| Left side of the equation = | 50000 | ( | 1 | + | 3411 10000 | ) | × | 12 100 | + | y | × | 12 100 |
| = | 6000 | ( | 1 | + | 3411 10000 | ) | + | y | × | 12 100 |
| = | 6000 | × | 1 | + | 6000 | × | 3411 10000 | + | 12 100 | y |
| = | 6000 | + | 10233 5 | + | 12 100 | y |
| = | 40233 5 | + | 12 100 | y |
40233 5 | + | 12 100 | y | = | 50000 | × | 3411 10000 |
| Right side of the equation = | 17055 |
40233 5 | + | 12 100 | y | = | 17055 |
12 100 | y | = | 17055 | − | 40233 5 |
12 100 | y | = | 45042 5 |
| y | = | 45042 5 | ÷ | 12 100 |
| = | 45042 5 | × | 100 12 |
| = | 7507 | × | 20 2 |
| y | = | 150140 2 |
| y | = | 75070 |