Question

please I need help. YOU BE THE TEACHER Your friend finds the difference. 7-(-12) = 7+ 12 = 19 Is your friend correct? yes or no Explain your reasoning​

Answer 1

yes. a negative subtracting a negative equals a positive, therefore it would be 7+12 which would equal 19. your friend is correct.

Answer 2

Yes.

Explanation:

Yes it is correct.

When any bracket is opened by "-" sign then the sign inside the bracket changes.

Here,

→7-(-12)

→7+12

→19

In the above question the bracket is opened by "-' and the sign of 12 is also negative. So, -×- changes into +.