| ( | 90000 | + | x | ) | × | 23 500 | ÷ | 113 100 | = | 1080 | + | 1560 | + | ( | 90000 | + | x | ) | × | 7 1000 | + | 36000 | × | 3 50 | + | 350 |
| Left side of the equation = | ( | 90000 | + | x | ) | × | 23 565 |
| ( | 90000 | + | x | ) | × | 23 565 | = | 1080 | + | 1560 | + | ( | 90000 | + | x | ) | × | 7 1000 | + | 36000 | × | 3 50 | + | 350 |
| Left side of the equation = | 90000 | × | 23 565 | + | x | × | 23 565 |
| = | 414000 113 | + | x | × | 23 565 |
414000 113 | + | 23 565 | x | = | 1080 | + | 1560 | + | ( | 90000 | + | x | ) | × | 7 1000 | + | 36000 | × | 3 50 | + | 350 |
| Right side of the equation = | 1080 | + | 1560 | + | ( | 90000 | + | x | ) | × | 7 1000 | + | 2160 | + | 350 |
| = | 5150 | + | ( | 90000 | + | x | ) | × | 7 1000 |
414000 113 | + | 23 565 | x | = | 5150 | + | ( | 90000 | + | x | ) | × | 7 1000 |
| Right side of the equation = | 5150 | + | 90000 | × | 7 1000 | + | x | × | 7 1000 |
| = | 5150 | + | 630 | + | x | × | 7 1000 |
| = | 5780 | + | 7 1000 | x |
414000 113 | + | 23 565 | x | = | 5780 | + | 7 1000 | x |
23 565 | x | − | 7 1000 | x | = | 5780 | − | 414000 113 |
3809 113000 | x | = | 5780 | − | 414000 113 |
3809 113000 | x | = | 239140 113 |
| x | = | 239140 113 | ÷ | 3809 113000 |
| = | 239140 113 | × | 113000 3809 |
| x | = | 27022820000 430417 |