Aquinhanhoa
Aquinhanhoa Aquinhanhoa
  • 18-10-2016
  • Mathematics
contestada

if r = -4 find the value of 3r - 9.

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Drfoster9904
Drfoster9904 Drfoster9904
  • 18-10-2016
-21 ,because 3(-4) is -12 and -12 plus -9 is -21
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