Final answer:
When solving for unknowns in equations, list known quantities, use appropriate equations, and check your work. If needed, consult for help and verify that the solution is reasonable and consistent with the problem context.
Step-by-step explanation:
To move on to the next step when solving for unknowns such as "X" and "Y" in simultaneous equations, the approach involves a series of methodical steps. After identifying the unknowns, you should create a list of known quantities from the problem and select the appropriate equations to solve for the unknowns. If one equation has more than one unknown, then you must have an additional equation for each extra unknown in order to find a solution.
When encountering complexities, it may be necessary to check your work for mistakes or consult a tutor for help. Finally, once an answer is obtained, it is imperative to verify that the answer is reasonable and makes sense in the context of the problem. This validation step is crucial to confirm that the solution derived aligns with the physical principles or mathematical logic pertaining to the question.