Answer:
12
Step-by-step explanation:
(I'm assuming the x is a multiplication sign)
Using the order of operations, start with what's inside of the parentheses and work from there:
start by adding 5+3--->
4+2×{16/(8)}2
divide 16 by 8--->
4+2×{2}2
multiply 2 by 2--->
4+4×2
multiply 4 by 2--->
4+8
add 4 and 8--->
12
