3u=-9+2u

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Solution for 3u=-9+2u equation: 



3u=-9+2u

We move all terms to the left:

3u-(-9+2u)=0

We add all the numbers together, and all the variables

3u-(2u-9)=0

We get rid of parentheses

3u-2u+9=0

We add all the numbers together, and all the variables

u+9=0

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

u=-9

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