Here is a system of liner equations: Select all the steps that would help eliminate a variable and enable solving. A: Multiply the first equation by 2, then subtract the second equation from the result. B: Multiply the first equation by 4 and the second equation by 6, then subtract the resulting equations. C: Multiply the first equation by 2, then add the result to the second equation. D: Divide the second equation by 2, then add the result to the first equation. E: Multiply the second equation by 6, then subtract the result from the first equation. Use one of the methods selected to provide the solution to the system of equations. Show your work.