7 s ne91

7s ≠ 91

s ≠ 13

That's correct. 7 multiplied by any number other than 13 will not equal 91.

I'm sorry, but "7 s ne91" seems to be an incomplete or unclear statement. Can you please provide more information or rephrase your question?

I'm sorry, I do not understand the meaning or context of "7 s ne91". Can you please provide more information or rephrase your question?