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05-05-2017
Mathematics

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Ben is 3 times as old as Daniel and is also 4 years older than Daniel.
How old is Daniel?

Respuesta :

05-05-2017

b=3d and b=d+4

Since b=b we can say:

3d=d+4 subtract d from both sides

2d=4 divide both sides by 2

d=2

Daniel is 2 years old. (and Ben is 6 years old)

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