12x+48y-3x -2y

what is equivalent '
-3(x-2y-4x+16y)

3(4x+16y-x+2y

12x+50y -3x-6y

or 63

12x + 48y - 3x - 2y = 9x + 46y

-3(x - 2y - 4x + 16y)
= -3(-3x + 14y)
= 9x - 42y

3(4x + 16y - x + 2y)
= 3(3x + 18y)
= 9x + 54y

12x + 50y - 3x - 6y
= 9x + 44y

Therefore, the equivalent expression is 9x + 44y.