| ( | 179 | + | 310 | ) | ÷ | 30 | × | x | + | 355 2 | ÷ | 30 | × | ( | x | + | 15 | ) | + | 90 | ÷ | 30 | × | ( | x | + | 30 | ) | = | 1943 |
| Left side of the equation = | ( | 179 | + | 310 | ) | × | 1 30 | x | + | 71 12 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| ( | 179 | + | 310 | ) | × | 1 30 | x | + | 71 12 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) | = | 1943 |
| Left side of the equation = | 179 | × | 1 30 | x | + | 310 | × | 1 30 | x | + | 71 12 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 179 30 | x | + | 31 3 | x | + | 71 12 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 163 10 | x | + | 71 12 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 163 10 | x | + | 71 12 | x | + | 71 12 | × | 15 | + | 3 | ( | x | + | 30 | ) |
| = | 163 10 | x | + | 71 12 | x | + | 355 4 | + | 3 | ( | x | + | 30 | ) |
| = | 1333 60 | x | + | 355 4 | + | 3 | ( | x | + | 30 | ) |
| = | 1333 60 | x | + | 355 4 | + | 3 | x | + | 3 | × | 30 |
| = | 1333 60 | x | + | 355 4 | + | 3 | x | + | 90 |
| = | 1513 60 | x | + | 715 4 |
1513 60 | x | + | 715 4 | = | 1943 |
1513 60 | x | = | 1943 | − | 715 4 |
1513 60 | x | = | 7057 4 |
| x | = | 7057 4 | ÷ | 1513 60 |
| = | 7057 4 | × | 60 1513 |
| = | 7057 | × | 15 1513 |
| x | = | 105855 1513 |
| x | = | 69.963648 |