-3(u+3)=9u-45

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Solution for -3(u+3)=9u-45 equation: 



-3(u+3)=9u-45

We move all terms to the left:

-3(u+3)-(9u-45)=0

We multiply parentheses

-3u-(9u-45)-9=0

We get rid of parentheses

-3u-9u+45-9=0

We add all the numbers together, and all the variables

-12u+36=0

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

-12u=-36

u=-36/-12

u=+3

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