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Plz explain how to solve -12 - (-21) i already know the answer but i need to show work thx

Plz explain how to solve -12 - (-21) i already know the answer but i need to show work thx
asked 170k views
2 votes
Plz explain how to solve
-12 - (-21) i already know the answer but i need to show work thx

asked
User Paulmorriss
by
8.0k points

1 Answer

3 votes
change the subtraction sign and the negative from -21 to addition
-12 + (+21) =9
answered
User Oren Bengigi
by
8.5k points
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