| ( | 575 | + | 25 | ) | x | = | ( | 575 | − | 25 | ) | ( | 23 5 | − | x | ) |
| Left side of the equation = | 575 | x | + | 25 | x |
| = | 600 | x |
| 600 | x | = | ( | 575 | − | 25 | ) | ( | 23 5 | − | x | ) |
| Right side of the equation = | 575 | ( | 23 5 | − | x | ) | − | 25 | ( | 23 5 | − | x | ) |
| = | 575 | × | 23 5 | − | 575 | x | − | 25 | ( | 23 5 | − | x | ) |
| = | 2645 | − | 575 | x | − | 25 | ( | 23 5 | − | x | ) |
| = | 2645 | − | 575 | x | − | 25 | × | 23 5 | + | 25 | x |
| = | 2645 | − | 575 | x | − | 115 | + | 25 | x |
| = | 2530 | − | 550 | x |
| 600 | x | = | 2530 | − | 550 | x |
| 600 | x | + | 550 | x | = | 2530 |
| 1150 | x | = | 2530 |
| x | = | 2530 | ÷ | 1150 |
| = | 2530 | × | 1 1150 |
| = | 253 | × | 1 115 |
| x | = | 253 115 |
| x | = | 11 5 |
| x | = | 2.2 |