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anygoal [31]
3 years ago
11

-18-3 what's the answer

Mathematics
2 answers:
mamaluj [8]3 years ago
6 0
It's just simple subtraction. The answer is -21.

*Tip: I method I like to use is, when both numbers are negative, just add them and add the negative sign. 

Hope I helped! <3
Llana [10]3 years ago
4 0
The answer is -21. Rule is that you follow the sign of the larger and add the opposite
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The sum of two numbers is 40 and their difference is 6.5, what is their product? show work please
Finger [1]
Let b>a, 

a+b=40 so we can say a=40-b

We are told that b-a=6.5, using a found above in the equation gives us:

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2b-40=6.5

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b=23.25, and since  a=40-b

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So a=16.75 and b=23.25

check...

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