4(u+9)=9u-9

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Solution for 4(u+9)=9u-9 equation: 



4(u+9)=9u-9

We move all terms to the left:

4(u+9)-(9u-9)=0

We multiply parentheses

4u-(9u-9)+36=0

We get rid of parentheses

4u-9u+9+36=0

We add all the numbers together, and all the variables

-5u+45=0

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

-5u=-45

u=-45/-5

u=+9

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