littlebrain3513 littlebrain3513

23-08-2017
Mathematics

contestada

Five times a number is the same as 30 more than 8 times the number. find the number.if n is "the number," which equation could be used to solve for the number?

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Аноним Аноним

24-08-2017

the number—n:
5n = 8n + 30
3n = - 30
n = - 10

Answer: - 10 is the number.

Proof:
5(- 10) = 8(- 10) + 30
- 50 = - 80 + 30
- 50 = - 50

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