Question

Add them-2x and 3y....​

Answer 1

Answer:

Please mark me as Brainlist , your Answer

Step-by-step explanation:

C should be the answer. Why?

2x - 4y = 5

6x - 3y = 10

Multiply by -3 to the top equation will eliminate the x variable in the system

-3(2x - 4y = 5)

   6x - 3y = 10

==> -6x + 12y = -15

       6x - 3y = 10

adding top with bottom will eliminate the x

==> -6x + 6x = 0, 12y + (-3y) = 9y, -15 + 10 = -5