Final answer:
The question lacks the actual equations to solve the system precisely, but general steps include elimination or substitution in algebra or graphical intersection points, followed by checking the reasonableness of obtained solutions.
Step-by-step explanation:
It appears we are looking at a question involving a system of equations, where the best approximation to the solution should be determined. However, the given question does not provide the actual system of equations for solving. In general, when attempting to solve a system of equations, you would typically use algebraic methods such as substitution or elimination or graphical methods to find where two lines on a graph intersect. To eliminate terms and simplify the algebra is a common step in the solving process. Once a solution is obtained, it is important to check the reasonableness of the answer, ensuring it makes sense in the context of the problem. For example, if the knowns are substituted correctly, the numerical solution should be complete with units, and when rounding, the conventions of significant figures or decimal places should be considered.