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andrew11 [14]
3 years ago
15

4n + 5n= -9? What is the answer?

Mathematics
2 answers:
uysha [10]3 years ago
8 0

Combine like terms:

4n+5n=-9\\ 9n=-9

Isolate the variable on one side of the equation:

9n=-9\\ n=-1

The answer is n=-1.

timurjin [86]3 years ago
6 0

add 4n and 5n, which is 9. 9n=-9, and if u divide both sides by nine, n=-1

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