20=2u+8

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Solution for 20=2u+8 equation: 



20=2u+8

We move all terms to the left:

20-(2u+8)=0

We get rid of parentheses

-2u-8+20=0

We add all the numbers together, and all the variables

-2u+12=0

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

-2u=-12

u=-12/-2

u=+6

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