Respuesta :
Wouldn’t it be 8? I’m not math genius but 12 is the total of cars and is also x. So it would be 12-4 which is 8?
it should be 4 cars because there are 8 cars each with 4 wheels that is 32 and there are 4 bicycles each with 2 wheel 8 x 4 = 32 and 4 x 2 = 8 32+8=40 wheels