Not equal to sign - Definition and examples.

Not equal to sign is the symbol that you see here in red  ≠  that we use to indicate that two numbers do not have the same value.

We read ≠ as is not equal to. 

Other examples

1  ≠ 2              Read as one is not equal to two

-2 ≠ 5             Read as one negative two is not equal to five

7  ≠ 4             Read as negative nine is less than negative two