You may proceed that way in your answers if you wish. Often, however, a clear statement of your assumption, position or conclusion at the beginning is helpful to the reader. Do not leave out any steps. Note that evidence is an important part of the reasoning process in this course. You know that a conclusion without supporting evidence is called an assertion.
Assertions lose a lot of credit.
Any normal organizational pattern is acceptable. An overview of what you are going to accomplish in the answer should preface your analysis. Strive for readability and clear communication. Above all, observe the iron laws of paragraphing. Run-on paragraphs are difficult to read.