jay9bunnyaprari jay9bunnyaprari
  • 26-01-2017
  • Mathematics
contestada

-23 - (-39) what's the answer and how do i dio it, as my teacher explained it in a way i didn't understand.

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Blurryface25
Blurryface25 Blurryface25
  • 26-01-2017
-23 - -39
equals -23+39 because 2 minus signs = a plus sign
-23+39=16
the answer is 16
Answer Link
hschnirel
hschnirel hschnirel
  • 26-01-2017
I know it seems hard at first but try this rule for subtraction
For subtraction of integers change the subtraction sign to positive and change the second number sign to the opposite and follow rule of addition
So it becomes
-23 +(+39) now use
Rule for addition of different signs is to subtract and use sign of larger number in answer
It just takes practice don't give up!
Answer Link

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