Un=3n+2

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Solution for Un=3n+2 equation: 



U=3U+2

We move all terms to the left:

U-(3U+2)=0

We get rid of parentheses

U-3U-2=0

We add all the numbers together, and all the variables

-2U-2=0

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

-2U=2

U=2/-2

U=-1

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