lluviareyes4567 lluviareyes4567
  • 06-11-2018
  • Mathematics
contestada

108=-12 - 4 (-5n+7)I need help

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suspho
suspho suspho
  • 06-11-2018

108 = -12 + -4(-5n + 7)

108 = -12 + (7 * -4 + -5n * -4)

108 = -12 + (-28 + 20n)

108 = -40 + 20n

-20n = -40 + -108

-20n = -148

n = 7.4

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