Question

–9+9+7=; 4+(–3) +(–4) = ​

Answer 1

Ответ:

-9+9+7=7

4+(-3)+(-4)=-3

Answer 2

Let's solve these equations step by step:

1. -9 + 9 + 7: First, add -9 and 9, which cancels out to 0. Then, add 0 and 7. -9 + 9 + 7 = 0 + 7 = 7

2. 4 + (-3) + (-4): First, add 4 and (-3). 4 + (-3) = 4 - 3 = 1

   Now, add 1 and (-4). 1 + (-4) = 1 - 4 = -3

So, 4 + (-3) + (-4) = -3.