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+2 - -19 = ? Need help!!!!

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+2 + 19 = 21
double negative is a positive
Because -(-blah) = +blah,\[+2-(-19) = +2 + 19\]

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Other answers:

\[12-(-19)=12+19= ?\]
So what's the answer
31 :)
I think it's +21
Ohh. Yeap .. I calculated it according to my post.. Sorry I have written 12 instead of 2.. :D
Ok that you
+16 - -34 = ?
Same as the above.. Give a try.. :)
Nope. 16+34=?
Correct. Well done :)
Thank you
You are always welcome... :)
-11 - -47= ??
- - = + Try to do it...
So I add them
But the minus of the first one wouldn't change.. - a - -b = -a+b
Yeah add them up. Don't forget the minus mark at the front..

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