| ( | 168 | + | 223 | ) | ÷ | 28 | × | x | + | 224 | ÷ | 28 | × | ( | 15 | + | x | ) | + | 112 | ÷ | 28 | × | ( | 30 | + | x | ) | = | 1963 |
| Left side of the equation = | ( | 168 | + | 223 | ) | × | 1 28 | x | + | 8 | ( | 15 | + | x | ) | + | 4 | ( | 30 | + | x | ) |
| ( | 168 | + | 223 | ) | × | 1 28 | x | + | 8 | ( | 15 | + | x | ) | + | 4 | ( | 30 | + | x | ) | = | 1963 |
| Left side of the equation = | 168 | × | 1 28 | x | + | 223 | × | 1 28 | x | + | 8 | ( | 15 | + | x | ) | + | 4 | ( | 30 | + | x | ) |
| = | 6 | x | + | 223 28 | x | + | 8 | ( | 15 | + | x | ) | + | 4 | ( | 30 | + | x | ) |
| = | 391 28 | x | + | 8 | ( | 15 | + | x | ) | + | 4 | ( | 30 | + | x | ) |
| = | 391 28 | x | + | 8 | × | 15 | + | 8 | x | + | 4 | ( | 30 | + | x | ) |
| = | 391 28 | x | + | 120 | + | 8 | x | + | 4 | ( | 30 | + | x | ) |
| = | 615 28 | x | + | 120 | + | 4 | ( | 30 | + | x | ) |
| = | 615 28 | x | + | 120 | + | 4 | × | 30 | + | 4 | x |
| = | 615 28 | x | + | 120 | + | 120 | + | 4 | x |
| = | 727 28 | x | + | 240 |
727 28 | x | + | 240 | = | 1963 |
727 28 | x | = | 1963 | − | 240 |
727 28 | x | = | 1723 |
| x | = | 1723 | ÷ | 727 28 |
| = | 1723 | × | 28 727 |
| x | = | 48244 727 |
| x | = | 66.360385 |