3u-u=13

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Solution for 3u-u=13 equation: 



3u-u=13

We move all terms to the left:

3u-u-(13)=0

We add all the numbers together, and all the variables

2u-13=0

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

2u=13

u=13/2

u=6+1/2

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