-7+4u=9

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Solution for -7+4u=9 equation: 



-7+4u=9

We move all terms to the left:

-7+4u-(9)=0

We add all the numbers together, and all the variables

4u-16=0

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

4u=16

u=16/4

u=4

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