'P $\times$ Q' means 'P is the brother of Q','P $-$ Q' means 'P is the wife of Q','P $+$ Q' means 'P is the father of Q','P $÷$ Q' means 'P is the daughter of Q'.If 'D $\times$ B $-$ E $+$ C $-$ A', then how is A related to E?

Let's decode the expression 'D $\times$ B $-$ E $+$ C $-$ A' step-by-step:'D $\times$ B' $\to$ D is the brother of B.'B $-$ E' $\to$ B is the wife of E. (Thus, E is the husband of B, making E a male).'E $+$ C' $\to$ E is the father of C.'C $-$ A' $\to$ C is the wife of A. (Thus, A is the husband of C, making A a male).Now, let's analyze the relationship between A and E:E is the father of C.C is married to A.Therefore, A is the husband of E's daughter (C).This means A is the son-in-law of E.