dezzy18
dezzy18 dezzy18
  • 17-09-2017
  • Mathematics
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The sum of eight times a number and fifteen is seven.Find the number. How do I work this out like these?

The sum of eight times a number and fifteen is sevenFind the number How do I work this out like these class=

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Nikki8HS
Nikki8HS Nikki8HS
  • 17-09-2017
(8x n) + 15=7 : 7-15= (-8), (-8)divided by 8= (-1) : n=(-1) : When you have problems like this it helps to work them backwards. Hope you understand this.
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