Question

2+2+5-2-2-1+5-5+4-4+9-9+6-7+1​

Answer 1

2+2+5-2-2-1+5-5+4-4+9-9+6-7+1

4+5-2-2-1+5-5+4-4+9-9+6-7+1

9-2-2-1+5-5+4-4+9-9+6-7+1

7-2-1+5-5+4-4+9-9+6-7+1

5-1+5-5+4-4+9-9+6-7+1

4+5-5+4-4+9-9+6-7+1

9-5+4-4+9-9+6-7+1

4+4-4+9-9+6-7+1

8-4+9-9+6-7+1

4+9-9+6-7+1

13-9+6-7+1

4+6-7+1

10-7+1

3+1

4

Ответ: 4

Answer 2

Let's simplify the expression step by step:

2 + 2 + 5 - 2 - 2 - 1 + 5 - 5 + 4 - 4 + 9 - 9 + 6 - 7 + 1

First, perform the addition and subtraction operations from left to right:

(2 + 2 + 5) - 2 - 2 - 1 + 5 - 5 + 4 - 4 + 9 - 9 + 6 - 7 + 1 9 - 2 - 2 - 1 + 5 - 5 + 4 - 4 + 9 - 9 + 6 - 7 + 1 7 - 1 + 5 - 5 + 4 - 4 + 9 - 9 + 6 - 7 + 1 6 - 5 + 4 - 4 + 9 - 9 + 6 - 7 + 1 1 - 7 + 1 -6 + 1 -5

So, the value of the expression is -5.