What does "不等“ add in 从A到B不等?

Question

So, I just learned this grammar. For example, I know that we can say 这个商店的价格从五十元到五千元不等。 But, I thought I could also say 这个商店的价格从五十元到五千元。 What does 不等 add to the sentence? Does it slightly change the meaning? Does it make it more colloquial?

Answer 1

不等in Chinese means variety. If you add it to the sentence actually make it more academic /official.