Hello I'm a newbie. I need help with my homework. I have ADD bad. I don't understand this section Could someone please show how to work these problems?

In Ex. 9-16 solve the equation f(x)= g(x) algebraically.

11. f(x)=5^x-2-15

g(x)=10

In Ex 43-60 solve the exponential equation algebraically. Round your result to three decimal places. Use a graphing utility to verify your answer.

43. 8^3x=360

45. 2e^5x=18

47. 500e^-x=300