when an equation in one variable is solved using a system of equations, the solution is always the of each…

Brief Explanations:

When solving an equation in one variable using a system of equations, we set (y) equal to the left - hand side and (y) equal to the right - hand side of the original equation. The intersection of these two lines (in the form (y = f(x)) and (y = g(x))) gives the solution. The (x) - value of the intersection point is the solution of the original one - variable equation. For example, if we have the equation (2x+1=3), we can write the system (\left{\begin{array}{l}y = 2x + 1\y=3\end{array}\right.). The (x) - coordinate of the intersection of (y = 2x+1) and (y = 3) is the solution of (2x + 1=3).

Answer:

x - coordinate