What is the first step in the indirect proof?
a. given: there are 12 dogs and cats at a veterinarian’s office. there are more dogs than cats.
prove: there are at least 7 dogs.
b. given: an integer n
prove: n is odd

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: