3u+9-7u=-5

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Solution for 3u+9-7u=-5 equation: 



3u+9-7u=-5

We move all terms to the left:

3u+9-7u-(-5)=0

We add all the numbers together, and all the variables

-4u+14=0

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

-4u=-14

u=-14/-4

u=3+1/2

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