T(n)=3n-7

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Solution for T(n)=3n-7 equation: 



(T)=3T-7

We move all terms to the left:

(T)-(3T-7)=0

We get rid of parentheses

T-3T+7=0

We add all the numbers together, and all the variables

-2T+7=0

We move all terms containing T to the left, all other terms to the right

-2T=-7

T=-7/-2

T=3+1/2

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