Question

which of the following equations is equivalent to 1/4x -1/2y =8? a) 2x-4y=8. b)2x-4y =64. c) 4x-2y =64

Answer 1

If you multiply the original equation by 8, you get

... 8(1/4x -1/2y) = 8(8)

... 8/4x -8/2y = 64

... 2x -4y = 64 . . . . . matches choice b)