Solving Boolean Algebra Problems: A+B = A+B

[luigihs]

Hello,
Im trying to understand boolean algebra, I have to do the next problem using Boolean algebra and Identities for this one:

So far this what I got:
A + /A (A+B) = A + B
A + /AA + /AB = A+B
A + A + /AB = A + B
A + A + B = A + B <-- I think A + A = A so ..
A + B = A + B <-- I am not sure what to do after this

 

[tiny-tim]

hello luigihs!

first, you should only be altering the LHS (until it equals the RHS, of course)

second, /AA is not A … what is it?