Question

-6-(+8,1). -5-(+6,7). 3,5-(+7)

Answer 1

-6-(+8,1)=-6-8,1=-14,1

-5-(+6,7)=-5-6,7=-11,7

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

Answer 2

To perform these calculations, we'll simplify the expressions step by step:

1. -6 - (+8,1): Since there's a comma in "+8,1," it indicates a mixed number. We need to convert it to a decimal first. +8,1 = 8 + 1/10 = 8.1

Now, the expression becomes: -6 - 8.1 = -14.1

2. -5 - (+6,7): Again, we convert the mixed number to a decimal: +6,7 = 6 + 7/10 = 6.7

Now, the expression becomes: -5 - 6.7 = -11.7

3. 3,5 - (+7): The mixed number (+7) is already in decimal form: +7 = 7

Now, the expression becomes: 3.5 - 7 = -3.5

So, the results are:

1. -6 - (+8,1) = -14.1
2. -5 - (+6,7) = -11.7
3. 3,5 - (+7) = -3.5