3 years ago

The sum of eight times a number and fifteen is seven.Find the number. How do I work this out like these?

1 answer:

5 0

(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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Sonbull [250]

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