Answer: 7
Step-by-step explanation:
6 + { 5 - [2+ (3-1)]} = 6 + { 5 - [2 + 2]} As, [(3 - 1) = 2]
= 6 + {5 - 4} As, [2+2 = 4]
= 6 + 1 AS,[5 - 4 = 1]
= 7
