| x | × | 450 | − | ( | 70 | + | 240 | x | + | 171 | + | 50 | + | 1981 25 | ) | − | ( | x | × | 450 | × | 13 | ÷ | 100 | − | x | × | 15 | − | 152 5 | ) | × | 12 | ÷ | 100 | = | 0 |
| Left side of the equation = | x | × | 450 | − | ( | 70 | + | 240 | x | + | 171 | + | 50 | + | 1981 25 | ) | − | ( | x | × | 450 | × | 13 | ÷ | 100 | − | x | × | 15 | − | 152 5 | ) | × | 3 25 |
| 450 | x | − | ( | 70 | + | 240 | x | + | 171 | + | 50 | + | 1981 25 | ) | − | ( | x | × | 450 | × | 13 | ÷ | 100 | − | x | × | 15 | − | 152 5 | ) | × | 3 25 | = | 0 |
| Left side of the equation = | 450 | x | − | 70 | − | 240 | x | − | 171 | − | 50 | − | 1981 25 | − | ( | x | × | 450 | × | 13 | ÷ | 100 | − | x | × | 15 | − | 152 5 | ) | × | 3 25 |
| = | 210 | x | − | 9256 25 | − | ( | x | × | 450 | × | 13 | ÷ | 100 | − | x | × | 15 | − | 152 5 | ) | × | 3 25 |
| = | 210 | x | − | 9256 25 | − | x | × | 450 | × | 13 | ÷ | 100 | × | 3 25 | + | x | × | 15 | × | 3 25 | + | 152 5 |
| = | 210 | x | − | 9256 25 | − | x | × | 351 50 | + | x | × | 9 5 | + | 456 125 |
| = | 10239 50 | x | − | 45824 125 |
10239 50 | x | − | 45824 125 | = | 0 |
10239 50 | x | = | 0 | + | 45824 125 |
10239 50 | x | = | 45824 125 |
| x | = | 45824 125 | ÷ | 10239 50 |
| = | 45824 125 | × | 50 10239 |
| = | 45824 5 | × | 2 10239 |
| x | = | 91648 51195 |
| x | = | 1.790175 |