If 1 = 5, 2 = 6, 3 = 7, 4 = 8, then 5 =? Answer Such as the title

If 1 = 5, 2 = 6, 3 = 7, 4 = 8, then 5 =? Answer Such as the title

If 1 = 5 2 = 6 3 = 7 4 = 8, then 5 =?
It must be equal to 1. Isn't the title 1 = 5
I hope my answer can help you,