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Home Q & A Board Science-Related Homework Help Mathematics
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mikee mikee
wrote...
Go to Answer
11 years ago
Just adding negative and positive integers. It was on my homework and is really easy but there is one problem I don't quite understand.

-14 + (-9) + 20 + (-2)
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10 Replies
Replies
wrote...
#1
11 years ago
same thing as -14-9+20-2 which is -5
tommygirl5012 Author
wrote...
#2
11 years ago
That's the same as -14 + 9 + 20 - 2, or 13.
wrote...
#3
11 years ago
Go from left to right:

-14 + (-9) = -14 - 9 = -23.

-23 + 20 = -3.

-3 + (-2) = -3 - 2 = -5.
Answer accepted by topic starter
Dave4BioDave4Bio
wrote...
#4
Posts: 59
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11 years ago
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wrote...
#5
11 years ago
-14 + (-9) + 20 + (-2)

-14-9+20-2

Due to the positive and the negative, it becomes a minus.

Solve.

-23+20-2

-3-2

-5

Therefore, the answer is -5.
wrote...
#6
11 years ago
= - 5
zzz
wrote...
#7
11 years ago
Whenever you have a plus and a minus, you make it minus.  When there are two minuses, make it a plus.  This is true whether addition, subtraction, multiplication or division.

-14 + (-9) + 20 + (-2)
-14 -9 +20 -2
-25 + 20
-5
wrote...
#8
11 years ago
-14 + (-9) + 20 + (-2)
= - 14 - 9 + 20 - 2
= - 23 + 20 - 2
= - 3 - 2
= - 5
wrote...
#9
11 years ago
- 14 - 9 + 20 - 2 = - 25 + 20 = - 5
_biology Author
wrote...
#10
11 years ago
Remeber to think of it as a bank account:   -$14 + $(-9) + $20 + $(-2)

you have -$14 and now you spent $9( adding a negative)                      
-$23 + $20 + $(-2)

Now you have -$23 and you deposited $20(added a positive)        
$-3+ $(-2)

Now you have -$3 and you spent $2( adding a negative)
-$5

The answer is -5 Slight Smile
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