Final answer:
Without the original pair of equations, it's impossible to determine the correct next step to eliminate x to solve for y in the system of equations Olivia is working on.
Step-by-step explanation:
The student's question relates to the process of eliminating a variable in a system of linear equations to find the solution to the other variable. The question seems to be missing the specific equations Olivia is working with, hence we cannot select the correct step to eliminate x without the original pair of equations. However, we can understand that the next step she needs to target is manipulating the equations such that when they are combined, the x terms cancel each other out, leaving an equation with only y, which then can be solved.
In order to correctly assist Olivia, it is imperative to have the original pair of equations at hand. Without this information, it is not possible to confirm the accuracy of options a, b, c, or d as the correct next step.