| 5 | ( | x | + | 230 | ) | ÷ | ( | 1430 | + | x | ) | = | ( | 5 | x | ÷ | 1200 | + | x | ) | + | 20 100 |
| Multiply both sides of the equation by: | ( | 1430 | + | x | ) |
| 5 | ( | x | + | 230 | ) | = | ( | 5 | x | ÷ | 1200 | + | x | ) | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 5 | × | 230 | = | ( | 5 | x | ÷ | 1200 | + | x | ) | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 5 | × | 230 | = | 5 | x | ÷ | 1200 | × | ( | 1430 | + | x | ) | + | x | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 1 240 | x | ( | 1430 | + | x | ) | + | x | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 1 240 | x | × | 1430 | + | 1 240 | x | x | + | x | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 143 24 | x | + | 1 240 | x | x | + | x | ( | 1430 | + | x | ) | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 143 24 | x | + | 1 240 | x | x | + | x | × | 1430 | + | x | x | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 34463 24 | x | + | 1 240 | x | x | + | x | x | + | 20 100 | ( | 1430 | + | x | ) |
| 5 | x | + | 1150 | = | 34463 24 | x | + | 1 240 | x | x | + | x | x | + | 20 100 | × | 1430 | + | 20 100 | x |
| 5 | x | + | 1150 | = | 34463 24 | x | + | 1 240 | x | x | + | x | x | + | 286 | + | 20 100 | x |
| 5 | x | + | 1150 | = | 172339 120 | x | + | 1 240 | x | x | + | x | x | + | 286 |