2006-10-18 15:06:47 · 14 answers · asked by mary 1 in Science & Mathematics ➔ Mathematics
-1
2006-10-18 15:08:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋
-8--7 = -8+7 = -1
2006-10-18 22:08:45 · answer #2 · answered by fcas80 7 · 0⤊ 0⤋
-8-(-7)=-8+7=7-8=-1
2006-10-19 02:02:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
-8-(-7)=-8+7=-1
2006-10-18 22:24:02 · answer #4 · answered by yupchagee 7 · 0⤊ 0⤋
You must change the sign of the number that you are subtracting.
In this case, -7 becomes +7.
Then, we have:
-8 + 7 = -1
Guido
2006-10-18 22:09:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
(-8)-(-7)=-1
2006-10-19 03:24:15 · answer #6 · answered by ladjot 1 · 0⤊ 0⤋
-8--7=-1 i got this answer becasue when you get -8 next to the two negatives in front of the se7en the negatives cancel out so you get -8 + 7 which equals -1
2006-10-18 22:11:53 · answer #7 · answered by azngrlrocks 2 · 0⤊ 0⤋
-8 - (-7) = x
-8 + 7 = x
x = -1
2006-10-18 22:11:06 · answer #8 · answered by FrogDog 4 · 0⤊ 0⤋
-8 - -7
When subtracting an negative, it is the same as adding a positive.
So, it becomes
-8 + 7 or 7 - 8 (same answer- find difference, keep sign of number with the larger absolute value)
This equals
-1
2006-10-18 22:14:41 · answer #9 · answered by jackalrama 2 · 0⤊ 0⤋
As most others have said, its -1.
Subtracting a negative is the same as adding the positive.
When I was young, I found it easiest to think in terms of 'money' and 'debt'. - numbers are like debt.
So in this case, I start out, I owe 8 bucks. then i take away a debt of 7 bucks. So I now only owe 1 dollar.
2006-10-19 12:42:31 · answer #10 · answered by kheserthorpe 7 · 0⤊ 0⤋