231 200 | + | x | = | ( | 142 125 | + | x | ) | × | 5 | ÷ | 4 |
| Right side of the equation = | ( | 142 125 | + | x | ) | × | 5 4 |
231 200 | + | x | = | ( | 142 125 | + | x | ) | × | 5 4 |
| Right side of the equation = | 142 125 | × | 5 4 | + | x | × | 5 4 |
| = | 71 50 | + | x | × | 5 4 |
231 200 | + | x | = | 71 50 | + | 5 4 | x |
| x | − | 5 4 | x | = | 71 50 | − | 231 200 |
| - | 1 4 | x | = | 71 50 | − | 231 200 |
| - | 1 4 | x | = | 53 200 |
| - | 53 200 | = | 1 4 | x |
1 4 | x | = | - | 53 200 |
| x | = | - | 53 200 | ÷ | 1 4 |
| = | - | 53 200 | × | 4 |
| = | - | 53 50 | × | 1 |
| x | = | - | 53 50 |
| x | = | - 1.06 |