lolmatr lolmatr
  • 24-05-2020
  • Mathematics
contestada

Find two numbers, if their sum is 97 and their difference is 7.

Respuesta :

araesf araesf
  • 24-05-2020

Answer:

Step-by-s tep explanation:

Answer Link
altavistard
altavistard altavistard
  • 24-05-2020

Answer:

Step-by-step explanation:

Let m and n represent the numbers.  Then m + n = 97 and n - m = 7.

Solving the second equation for n, we get n = m + 7.  Substituting m + 7 for n in the first equation we obtain:

m + (m + 7) = 97, or

2m + 7 = 97, or 2m = 90

Dividing both sides by 2, we get m = 45.  Then n must be 52.

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