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coldgirl [10]
3 years ago
4

What's the answer to -15+n=-9

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
5 0
-15+n=-9
+15     +15
__________
n=6

What i did basically was add 15 on both sides, then -15 crosses out because it is added by +15 so they are additive inverses so they get crossed out. Then we have -9+15 and - +=-. So 15 - 9=6. So ur answer is 6. You can even do a check.

-15+n=9
-15+6=9
9=9 which proves that our answer is correct.
ipn [44]3 years ago
4 0
-15 + n = -9

add 15 to both sides

n = -9 + 15

n = 6
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