kirstynelizabethdumi kirstynelizabethdumi
  • 25-02-2019
  • Mathematics
contestada

Find the value of two numbers of their sum is 23 and their difference is a 3

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goodperson21
goodperson21 goodperson21
  • 25-02-2019

Congrats on your first question!

Answer: The numbers are 13 and 10.

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Note: This (1) means equation 1 and so on.

n= a number

y= another number

n+y=23 (1)

n-y=3 (2)

If we add these systems of equations together, we get:

2n=26

If we divide each side by 2, we get:

n=13.

If we insert this into equation 1, we get

13+y=23

y=10.

Therefore, the numbers are 13 and 10.

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