( | 3600 | + | x | ) | ÷ | ( | 13000 | + | x | ) | = | 3 10 |
Multiply both sides of the equation by: | ( | 13000 | + | x | ) |
( | 3600 | + | x | ) | = | 3 10 | ( | 13000 | + | x | ) |
3600 | + | x | = | 3 10 | ( | 13000 | + | x | ) |
3600 | + | x | = | 3 10 | × | 13000 | + | 3 10 | x |
3600 | + | x | = | 3900 | + | 3 10 | x |
x | − | 3 10 | x | = | 3900 | − | 3600 |
7 10 | x | = | 3900 | − | 3600 |
7 10 | x | = | 300 |
x | = | 300 | ÷ | 7 10 |
= | 300 | × | 10 7 |
x | = | 3000 7 |
x | = | 428.571429 |