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bjdlesain
26.08.2021 •
Mathematics
Is -9+7 the same as 7-n
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Ответ:
nah the first equation dont got a variable in it and instead of 9 in the second one it has negative one
Step-by-step explanation:
Ответ:
Depends
Step-by-step explanation:
-9 + 7 = -2
7 - n = ?
Well the letter "N" could be of any value ( number ) therefore, no they are not the same.
Example:
IF -9 + 7 = -2 IS...
IF N = 1.
IS 7 - 1 equal to -9 + 7? No, because 7-1 = 6 and -9 + 7 = -2
IF N = 2.
IS 7 - 2 equal to -9 + 7? No, because 7 - 2 = 5 and -9 + 7 = -2
and so on...
However:
-9 + 7 and 7 - 9 are the same. I'm pretty sure it's the commutative property.
Ответ:
C
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