Question

15 + (- 6) ; 2) - 9, 2 + 5, 7 ; 2. Есептеңдер: 3) - 3, 6 + (- 5, 7) ; 4) 8 - (- 4, 5) .​

Answer 1

Ответ:

15+(-6)=9

-9,2+5,7=-3,5

-3,6+(-5,7)=-9,3

8-(-4,5)=12,5

Answer 2

Let's solve the given expressions step by step:

1. 15 + (-6): When adding a positive number to a negative number, you can think of it as subtracting the absolute value of the negative number from the positive number. So, in this case, we have: 15 + (-6) = 15 - 6 = 9

2. -9, 2 + 5, 7: It seems like there might be a typo or missing operator in this expression. If you meant to write three separate expressions, I'll solve them individually: -9 + 2 = -7 5 + 7 = 12

So the result of these three expressions would be: -7, 12.

3. -3, 6 + (-5, 7): Similar to the previous expression, there seems to be a typo or missing operator. If you meant to write two separate expressions, I'll solve them individually: -3 + 6 = 3 -5 + 7 = 2

So the result of these two expressions would be: 3, 2.

4. 8 - (-4, 5): When subtracting a negative number, you can think of it as adding the absolute value of that negative number. So, in this case, we have: 8 - (-4.5) = 8 + 4.5 = 12.5

So the result of this expression is 12.5.