| 700 | ( | ( | x | − | 159 | ) | ÷ | 100 | ) | + | 300 | ( | ( | x | − | 159 | ) | ÷ | 150 | ) | = | 1000 |
| Left side of the equation = | 700 | ( | x | − | 159 | ) | ÷ | 100 | + | 300 | ( | ( | x | − | 159 | ) | ÷ | 150 | ) |
| = | 7 | ( | x | − | 159 | ) | + | 300 | ( | ( | x | − | 159 | ) | ÷ | 150 | ) |
| = | 7 | x | − | 7 | × | 159 | + | 300 | ( | ( | x | − | 159 | ) | ÷ | 150 | ) |
| = | 7 | x | − | 1113 | + | 300 | ( | ( | x | − | 159 | ) | ÷ | 150 | ) |
| = | 7 | x | − | 1113 | + | 300 | ( | x | − | 159 | ) | ÷ | 150 |
| = | 7 | x | − | 1113 | + | 2 | ( | x | − | 159 | ) |
| = | 7 | x | − | 1113 | + | 2 | x | − | 2 | × | 159 |
| = | 7 | x | − | 1113 | + | 2 | x | − | 318 |
| = | 9 | x | − | 1431 |
| 9 | x | − | 1431 | = | 1000 |
| 9 | x | = | 1000 | + | 1431 |
| 9 | x | = | 2431 |
| x | = | 2431 | ÷ | 9 |
| = | 2431 | × | 1 9 |
| x | = | 2431 9 |
| x | = | 270.111111 |