30.8-4u=5.2

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Solution for 30.8-4u=5.2 equation: 



30.8-4u=5.2

We move all terms to the left:

30.8-4u-(5.2)=0

We add all the numbers together, and all the variables

-4u+25.6=0

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

-4u=-25.6

u=-25.6/-4

u=6+1/2.5

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