9u=28+2u

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Solution for 9u=28+2u equation: 



9u=28+2u

We move all terms to the left:

9u-(28+2u)=0

We add all the numbers together, and all the variables

9u-(2u+28)=0

We get rid of parentheses

9u-2u-28=0

We add all the numbers together, and all the variables

7u-28=0

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

7u=28

u=28/7

u=4

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