Question

Need quick help please !

Which operations on the system of equations could be used to eliminate the x variable?

2x-y=4
X-2y=-1


Select the correct answer below.

A.divide the first equation by 2 and add the result to the first equation

B.divide the first equation by -4 and add the result to the first equation

C.multiply the second equation by 4 and add the result to the first equation

D.multipy the second equation by -2 and add the result to the first equation

Answer 1

D.  By multiplying X by -2 you will have 2X + (-2X) which will cancel out, eliminating the X variable