T(n)=2n+n

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Solution for T(n)=2n+n equation: 



(T)=2T+T

We move all terms to the left:

(T)-(2T+T)=0

We add all the numbers together, and all the variables

T-(+3T)=0

We get rid of parentheses

T-3T=0

We add all the numbers together, and all the variables

-2T=0

T=0/-2

T=0

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