Respuesta :

Answer:

x-3y+12 = 12-3y-2x+x+2x

3y+12 = x+3y+2x-3x+7+5

3x+y-12 = 4y+3y+3x-6y-10-2

x+3y+12 = 3x+2y-2x+y+12

Step-by-step explanation:

Answer:

Here ya go

Step-by-step explanation:

x-3y+12 = 12-3y-2x+x+2x

3y+12 = x+3y+2x-3x+7+5

3x+y-12 = 4y+3y+3x-6y-10-2

x+3y+12 = 3x+2y-2x+y+12