Answer:
The expression is -8.
Explanation:
Let's break down the expression step by step:
= 12 - [7 + 4 * 3 - (4 * 2 - 6)] + (4 + 6 - 5 * 3) + 3 - (5 - 8/2)
= 12 - [7 + 12 - (8 - 6)] + (4 + 6 - 5 * 3) + 3 - (5 - 4)
= 12 - [7 + 12 - 2] + (4 + 6 - 5 * 3) + 3 - 1
= 12 - [19 - 2] + (4 + 6 - 5 * 3) + 3 - 1
= 12 - [17] + (4 + 6 - 5 * 3) + 3 - 1
= 12 - 17 + (4 + 6 - 5 * 3) + 3 - 1
= -5 + (4 + 6 - 5 * 3) + 3 - 1
= -5 + (4 + 6 - 15) + 3 - 1
= -5 + (10 - 15) + 3 - 1
= -5 + (-5) + 3 - 1
= -5 - 5 + 3 - 1
= -10 + 3 - 1
= -7 - 1
= -8
Therefore, the solution to the expression is -8.