67 1000 | ( | 152407 2000 | − | y | ) | + | 57 1000 | y | = | 1099 250 |
| Left side of the equation = | 67 1000 | × | 152407 2000 | − | 67 1000 | y | + | 57 1000 | y |
| = | 10211269 2000000 | − | 67 1000 | y | + | 57 1000 | y |
| = | 10211269 2000000 | − | 1 100 | y |
10211269 2000000 | − | 1 100 | y | = | 1099 250 |
| - | 1 100 | y | = | 1099 250 | − | 10211269 2000000 |
| - | 1 100 | y | = | - | 1419269 2000000 |
1419269 2000000 | = | 1 100 | y |
1 100 | y | = | 1419269 2000000 |
| y | = | 1419269 2000000 | ÷ | 1 100 |
| = | 1419269 2000000 | × | 100 |
| = | 1419269 20000 | × | 1 |
| y | = | 1419269 20000 |
| y | = | 70.96345 |