100 | Y | − | ( | 580 | + | 40 | × | 100 | ) | − | ( | 100 | Y | × | 13 100 | − | 5 | × | 100 | ) | × | 12 100 | = | 0 |
Left side of the equation = | 100 | Y | − | 580 | − | 40 | × | 100 | − | ( | 100 | Y | × | 13 100 | − | 5 | × | 100 | ) | × | 12 100 |
= | 100 | Y | − | 580 | − | 4000 | − | ( | 100 | Y | × | 13 100 | − | 5 | × | 100 | ) | × | 12 100 |
= | 100 | Y | − | 4580 | − | ( | 100 | Y | × | 13 100 | − | 5 | × | 100 | ) | × | 12 100 |
= | 100 | Y | − | 4580 | − | 100 | Y | × | 13 100 | × | 12 100 | + | 5 | × | 100 | × | 12 100 |
= | 100 | Y | − | 4580 | − | 39 25 | Y | + | 60 |
= | 2461 25 | Y | − | 4520 |
2461 25 | Y | − | 4520 | = | 0 |
2461 25 | Y | = | 0 | + | 4520 |
2461 25 | Y | = | 4520 |
Y | = | 4520 | ÷ | 2461 25 |
= | 4520 | × | 25 2461 |
Y | = | 113000 2461 |
Y | = | 45.916294 |