Final answer:
To solve simultaneous equations, identify the knowns and unknowns, select and solve appropriate equations, simplify, substitute known quantities for verification, and ensure the solutions are reasonable.
Step-by-step explanation:
To solve simultaneous equations for the unknowns, you must begin by identifying what is given in the problem and what needs to be found. The next step involves choosing the appropriate equations that contain the known and unknown variables. In some cases, you might have to work with multiple equations to isolate variables.
Eliminate terms wherever possible to simplify the algebra involved in the solving process. Once a solution is found, it is necessary to substitute the known quantities, along with their units, into the equation to verify the solution. This step ensures that all units are correct and the values obtained are reasonable.
Last but not least, checking the answer for reasonability is crucial. It is important to confirm that the solution makes sense in the context of the problem and that all physical principles and mathematical rules have been properly applied.