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pochemuha
3 years ago
11

Cody is twice as old as Evan and seven years ago the sum of their age was 7. find the age of each boy now

Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0
Cody: 2x
Evan: x

x-7 (Evan’s age 7 years ago (-7))
2x-7( Cody’s age 7 years ago (-7))

So you add both
x-7+2x-7
And that should equal 7 (seven years ago the sum of their age was 7)
x-7+2x-7=7
3x-14=7
3x=21
x=7

Evan (x)= 7
Cody (2x)= 7 times 2
Cody= 14
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