3-4u=9

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Solution for 3-4u=9 equation: 



3-4u=9

We move all terms to the left:

3-4u-(9)=0

We add all the numbers together, and all the variables

-4u-6=0

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

-4u=6

u=6/-4

u=-1+1/2

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