| ( | 4 | ÷ | 1000 | ) | + | ( | 110 | ÷ | 3600 | ) | x | = | ( | 12 | ÷ | 1000 | ) | + | ( | 100 | ÷ | 3600 | ) | x |
| Left side of the equation = | 4 | ÷ | 1000 | + | ( | 110 | ÷ | 3600 | ) | x |
| = | 1 250 | + | ( | 110 | ÷ | 3600 | ) | x |
| = | 1 250 | + | 110 | ÷ | 3600 | × | x |
| = | 1 250 | + | 11 360 | x |
1 250 | + | 11 360 | x | = | ( | 12 | ÷ | 1000 | ) | + | ( | 100 | ÷ | 3600 | ) | x |
| Right side of the equation = | 12 | ÷ | 1000 | + | ( | 100 | ÷ | 3600 | ) | x |
| = | 3 250 | + | ( | 100 | ÷ | 3600 | ) | x |
| = | 3 250 | + | 100 | ÷ | 3600 | × | x |
| = | 3 250 | + | 1 36 | x |
1 250 | + | 11 360 | x | = | 3 250 | + | 1 36 | x |
11 360 | x | − | 1 36 | x | = | 3 250 | − | 1 250 |
1 360 | x | = | 3 250 | − | 1 250 |
1 360 | x | = | 1 125 |
| x | = | 1 125 | ÷ | 1 360 |
| = | 1 125 | × | 360 |
| = | 1 25 | × | 72 |
| x | = | 72 25 |
| x | = | 2.88 |