9u=4u+30

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Solution for 9u=4u+30 equation: 



9u=4u+30

We move all terms to the left:

9u-(4u+30)=0

We get rid of parentheses

9u-4u-30=0

We add all the numbers together, and all the variables

5u-30=0

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

5u=30

u=30/5

u=6

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