1. 2.7^x = 4
2. ln x - ln(3x - 5) = 2
2. Combine the two logs on the left using the rule . Exponentiate both sides to the base e and then use the rule that . Now multiply both sides by (3x - 5) to get a linear equation in x:
Expand, re-arrange to group like terms and solve for x. a decimal approximation you can get from any calculator with an button.