annieasher annieasher

19-10-2019
Mathematics

contestada

I am F years old and my brother is B years older. What is the sum of our ages? What will be the sum of our ages in three years? What was the difference of our ages two year ago?

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BioelementoEspacial BioelementoEspacial

19-10-2019

Answer:

Sum= F+B

In 3 years = F+3+B+3 = F+B+6

Difference... = Since your brother is older, B-2-(F-2) = B-2-F+4 = B-F-2

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