u+4u=4=7

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Solution for u+4u=4=7 equation: 



u+4u=4=7

We move all terms to the left:

u+4u-(4)=0

We add all the numbers together, and all the variables

5u-4=0

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

5u=4

u=4/5

u=4/5

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