vanduzenj4 vanduzenj4
  • 25-07-2016
  • Mathematics
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Solve the equation. 78 = -2(m + 3) + m A. –28 B. –42 C. –72 D. –84

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dalendrk
dalendrk dalendrk
  • 25-07-2016
78 = -2(m + 3) + m

78 = -2m - 6 + m

78 = -m - 6    |add 6 to both sides

84 = -m

m = -84
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