I believe anything more than -2 and less than 6 would work for x.
Answer:
ohh what's the topic
Step-by-step explanation:
its so hard hahhahahahah
1 train=418 2 train=456 3train=494 add them all together and divide by 3 418+456+494=1368/3=456 i hope this helps you and each train has more than 50 cars
You can't solve that, it is already simplified and unless an x is given you cannot do anything to that problem