u+42=4u

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Solution for u+42=4u equation: 



u+42=4u

We move all terms to the left:

u+42-(4u)=0

We add all the numbers together, and all the variables

-3u+42=0

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

-3u=-42

u=-42/-3

u=+14

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