7-4u=-57

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Solution for 7-4u=-57 equation: 



7-4u=-57

We move all terms to the left:

7-4u-(-57)=0

We add all the numbers together, and all the variables

-4u+64=0

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

-4u=-64

u=-64/-4

u=+16

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