Question

If a=8, b=9 calculate the result for given expression a+=a++ - ++b +a
options are:-
-2
-3
15
-15​

Answer 1

$\textsf{Given Expression}$

  $\texttt{int a = 8, b = 9;}\\\texttt{a += a++ - ++b + a;}$

$\textsf{Answer}$

  $\texttt{a += a++ - ++b + a}\\\texttt{a = a + (a++ - ++b + a)}\\\texttt{a = 8 + (8 - 10 + 9)}\\\texttt{a = 8 + (7)}\\\\\boxed{\texttt{a = 15}}$