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Hitman42 [59]
3 years ago
8

Twenty one is no less than the sum of a number and -2

Mathematics
1 answer:
Gala2k [10]3 years ago
4 0
x+(-2)=21

get rid of -2 by subtracting it from 21
x+(-2)=21-(-2)
Now you get your answer
x=23
Hope this helps! :)

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