Question

(x + 1) и 5 (a - b) и x

Answer 1

(x+1) и 5 =x+1+5=x+6 (a-b)

Answer 2

It seems like you have written an expression involving variables. However, it's not clear what you want to do with it. If you have a specific question or task related to this expression, please provide more context or clarify your request, and I'll be happy to assist you.