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# For masters on Algebra : Evaluating functions: w(n) = 4n+2;Find w(3n)  Once solved could i get a brief explanation please? I got 2 different numbers for it.

$w(n)=4n+2\\\\w(3n)-subtitute\ 3n\to n\\\\w(3n)=4\cdot3n+2=12n+2$