aracelic0104owjlqb aracelic0104owjlqb
  • 15-12-2017
  • Mathematics
contestada

simplify -3-(-9)


help please!!!

Respuesta :

Edufirst
Edufirst Edufirst
  • 15-12-2017
To eliminate the parenthesis you must use the rule of the signs: negative times negative = positive.

=> - 3 - ( - 9) = - 3 + 9

Now you can add the numbers algebraically: - 3 + 9 = 9 - 3 = 6.

Result: 6
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