| ( | 124 | + | 823 2 | ) | ÷ | 31 | × | x | + | 186 | ÷ | 31 | × | ( | x | + | 15 | ) | + | 93 | ÷ | 31 | × | ( | x | + | 30 | ) | = | 1740 |
| Left side of the equation = | ( | 124 | + | 823 2 | ) | × | 1 31 | x | + | 6 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| ( | 124 | + | 823 2 | ) | × | 1 31 | x | + | 6 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) | = | 1740 |
| Left side of the equation = | 124 | × | 1 31 | x | + | 823 2 | × | 1 31 | x | + | 6 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 4 | x | + | 823 62 | x | + | 6 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 1071 62 | x | + | 6 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 1071 62 | x | + | 6 | x | + | 6 | × | 15 | + | 3 | ( | x | + | 30 | ) |
| = | 1071 62 | x | + | 6 | x | + | 90 | + | 3 | ( | x | + | 30 | ) |
| = | 1443 62 | x | + | 90 | + | 3 | ( | x | + | 30 | ) |
| = | 1443 62 | x | + | 90 | + | 3 | x | + | 3 | × | 30 |
| = | 1443 62 | x | + | 90 | + | 3 | x | + | 90 |
| = | 1629 62 | x | + | 180 |
1629 62 | x | + | 180 | = | 1740 |
1629 62 | x | = | 1740 | − | 180 |
1629 62 | x | = | 1560 |
| x | = | 1560 | ÷ | 1629 62 |
| = | 1560 | × | 62 1629 |
| = | 520 | × | 62 543 |
| x | = | 32240 543 |
| x | = | 59.373849 |