In this case, we must analyze the question to find the solution.
Step 01:
equation one variable vs system of equations two variables = ?
Step 02:
In an equation with one variable, we must only apply the algebraic rules to find its value.
For systems of equations, we have different methods to solve them.
And it is possible to write the equations as a function of one variable, and then substitute in the other equation and thus find the solution.
Therefore, it is comparable to solving one variable equation.
That is the answer.
