The number of years it will take you to have completed studied an organism that has a life cycle of 10 years, is 15 or more than that. This is because you cannot just easily derived to a conclusion without controlling the environmental aspects of the experiments.
First: You're going to want to factor 2(3x-2). You will get 6x-4. Then you're going to want subtract 6x from both sides which will actually give you "no solution" because there will no longer be an x.
