SOLUTION: what does n= ? n+4=21-7

Question 595847: what does n= ?
n+4=21-7

Found 2 solutions by mamiya, Alan3354:
Answer by mamiya(56) (Show Source): You can put this solution on YOUR website!
n-4 = 21-7 --> n - 4 +4 = 21-7 +4
--> n = 14+4
-- > n = 18
so n=18
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
what does n= ?
n+4=21-7
----------
n+4 = 14
Subtract 4
n = 10

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