7u+u=48

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Solution for 7u+u=48 equation: 



7u+u=48

We move all terms to the left:

7u+u-(48)=0

We add all the numbers together, and all the variables

8u-48=0

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

8u=48

u=48/8

u=6

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