Ok this should be a rather simple question but I don't know if the key is wrong here or I if I'm wrong.
The question is: Determine all true implications/logical equivalence of the following statemtens:
I said $A\implies B$ and $A \iff C$ but the answer key says $A \implies B$ and $A \implies C$
I don't understand. If I'm wrong here I have no clue to why since you can change the C statement into A by dividing by b on both sides. Please help me answer this, what is suppose to be, simple question.