3u-9u-6u=-9

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Solution for 3u-9u-6u=-9 equation: 



3u-9u-6u=-9

We move all terms to the left:

3u-9u-6u-(-9)=0

We add all the numbers together, and all the variables

-12u+9=0

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

-12u=-9

u=-9/-12

u=3/4

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