3 years ago

How old is david if his age 6 years from now will be twice his age 7 years ago?

Mathematics

2 answers:

Kaylis [27]3 years ago

8 0

Let's say David's age right now is x years
x + 6 = 2(x - 7)
x + 6 = 2x - 14
x = 20
Therefor David is 20 years old

Gnesinka [82]3 years ago

6 0

X-6=2x-14
x=20
Dave is 20 years old
hope this helped

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