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o-na [289]
3 years ago
7

Is -9+7 the same as 7-n

Mathematics
2 answers:
Alinara [238K]3 years ago
8 0

Answer:

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:

ziro4ka [17]3 years ago
5 0

Answer:

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.

<u>IS</u> 7 - 1 <u>equal </u>to -9 + 7? No, because 7-1 = 6 and -9 + 7 = -2

IF N = 2.

<u>IS</u> 7 - 2 <u>equal</u> to -9 + 7? No, because 7 - 2 = 5 and -9 + 7 = -2

and so on...

However:

-9 + 7 and 7 - 9 are the <u>same</u>. I'm pretty sure it's the commutative property.

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