Question 1161312
c Coco
n Natt


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 Coco is six times older than Natt three years ago
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{{{system(c=(n-3)+6(n-3),c=3n)}}}


{{{system(c=7n-21,c=3n)}}}


{{{7n-21=3n}}}

{{{4n=21}}}

{{{n=21/4=5&1/4}}}

Natt is  5 years 3 months old.
In four more years, Natt will be  9 years 3 months of age.