Question

1 + 1 equal to 2 explain

Answer 1

Originally Answered: Why is 1 + 1 = 2?

Let us revive some definitions.

Philosophy: is the study of general and fundamental problems, such as those connected with reality, existence, knowledge, values, reason, mind, and language.

Language: Means of communication of experiences, thoughts and   feelings through a system of arbitrary signals, such as voice sounds, gestures, or written symbols.

Mathematics: My own attitude, which I share with many of my colleagues, is simply that mathematics is a language. Like English, or Latin, or Chinese, there are certain concepts for which mathematics is particularly well suited: it would be as foolish to attempt to write a love poem in the language of mathematics as to prove the Fundamental Theorem of Algebra using the English language.
So, 1+1=2.