hamilton11 hamilton11
  • 16-10-2018
  • Mathematics
contestada

-4-7=? I dont really understand

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Dbryan17 Dbryan17
  • 16-10-2018

-4 + -7= -11

When adding  negative numbers if the are both negative then you add them. When you have a negative and a positive you subtract.  In this problem they just took out the plus sign.

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