7-4u=-31

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Solution for 7-4u=-31 equation: 



7-4u=-31

We move all terms to the left:

7-4u-(-31)=0

We add all the numbers together, and all the variables

-4u+38=0

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

-4u=-38

u=-38/-4

u=9+1/2

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