Geena18 Geena18
  • 18-09-2017
  • Mathematics
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The difference of three times a number and 4 is -19?

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JinaWu
JinaWu JinaWu
  • 18-09-2017
n is the unknown number. 3n-4=-19 →add 4 on both sides and it becomes 3n=-15. Divide by 3 and it becomes n=-5.
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