| ( | 40221 1000 | + | x | ) | × | 31 20 | = | 40221 1000 | + | 17893 250 | − | x |
| Left side of the equation = | 40221 1000 | × | 31 20 | + | x | × | 31 20 |
| = | 1246851 20000 | + | x | × | 31 20 |
1246851 20000 | + | 31 20 | x | = | 40221 1000 | + | 17893 250 | − | x |
| Right side of the equation = | 111793 1000 | − | x |
1246851 20000 | + | 31 20 | x | = | 111793 1000 | − | x |
31 20 | x | + | x | = | 111793 1000 | − | 1246851 20000 |
51 20 | x | = | 111793 1000 | − | 1246851 20000 |
51 20 | x | = | 989009 20000 |
| x | = | 989009 20000 | ÷ | 51 20 |
| = | 989009 20000 | × | 20 51 |
| = | 58177 1000 | × | 1 3 |
| x | = | 58177 3000 |
| x | = | 19.392333 |