3u+u=2

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Solution for 3u+u=2 equation: 



3u+u=2

We move all terms to the left:

3u+u-(2)=0

We add all the numbers together, and all the variables

4u-2=0

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

4u=2

u=2/4

u=1/2

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