9u=4+8u

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Solution for 9u=4+8u equation: 



9u=4+8u

We move all terms to the left:

9u-(4+8u)=0

We add all the numbers together, and all the variables

9u-(8u+4)=0

We get rid of parentheses

9u-8u-4=0

We add all the numbers together, and all the variables

u-4=0

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

u=4

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