Question

Please I need the answers right away

Answer 1

1. 7 - (-15) = 7 + 8 = 22

2. 23 - 4 = 23 + (-4) = 19

3. -15 - 4 = -15 + (-4) = -19

Explanation:

1.

"-( -" makes the number in the parenthesis a positive number therefore it is +

7 + 15 = 22

7 + 15 is equal to 7 + 8 which equals 22

2.

23 - 4 = 23 + ??? = 19

23 - 4 = 19

23 + 9 = 32

23 + 8 = 31

23 + 7 = 30

23 + 6 = 29

23 + 5 = 28

23 + 4 = 27

23 + 3 = 26

22 + 2 = 24

22 + 1 = 23

22 + 0 = 22

22 + (-1) = 21

...

22 + (-4) = 19

( I can't fully answer #2 because the other choices are covered but I hope this helps)

3.

-15 - 4 = -15 + (-4) = -19

-15 - 4 = -19

Answer 2

1. 7 - (-15) = 7 + 15 = 22

2. 23 - 4 = 19

3. -15 -4 = -15 - 4 = -19

Please tell me if this is correct, your teacher seems to be adding a lot of unneeded steps for some reason, that's really annoying when they do that!