Respuesta :
Put the numbers in place of the letters first so
2x= 2(6)
20-y= 20-17
so now solve
2(6)=12+20=32-17=15
So your answer would be 15
2x= 2(6)
20-y= 20-17
so now solve
2(6)=12+20=32-17=15
So your answer would be 15