Respuesta :

6+12= 18

6+6+6=18

18-4=14

Explanation:

Before he was 6.

So 6+12 would give us 18 which will be his age after 12 years.

and 3 times 6 equals 18

we want to know what the current age was so

we subtract 18 - 4 which is equal to 14

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