Question

2-(2-n)=? 5-(n+5)=? -n+4-3=? -(-n+2)+1=?

Answer 1

Ответ:

1) n

2) -n

3) -n-7

4) -n-1

Пошаговое объяснение:

Answer 2

Let's evaluate each expression step by step:

1. 2 - (2 - n): First, simplify the expression inside the parentheses: 2 - n = -n. Now substitute the simplified expression back into the original equation: 2 - (-n) = 2 + n. Therefore, 2 - (2 - n) simplifies to 2 + n.

2. 5 - (n + 5): Again, simplify the expression inside the parentheses: n + 5. Now substitute the simplified expression back into the original equation: 5 - (n + 5) = 5 - n - 5. Simplify further: 5 - n - 5 = -n. Therefore, 5 - (n + 5) simplifies to -n.

3. -n + 4 - 3: Combine like terms: -n + 4 - 3 = -n + 1. Therefore, -n + 4 - 3 simplifies to -n + 1.

4. -(-n + 2) + 1: Distribute the negative sign inside the parentheses: -(-n + 2) = n - 2. Substitute the simplified expression back into the original equation: n - 2 + 1 = n - 1. Therefore, -(-n + 2) + 1 simplifies to n - 1.

To summarize:

1. 2 - (2 - n) simplifies to 2 + n.
2. 5 - (n + 5) simplifies to -n.
3. -n + 4 - 3 simplifies to -n + 1.
4. -(-n + 2) + 1 simplifies to n - 1.