-5=9-7u

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Solution for -5=9-7u equation: 



-5=9-7u

We move all terms to the left:

-5-(9-7u)=0

We add all the numbers together, and all the variables

-(-7u+9)-5=0

We get rid of parentheses

7u-9-5=0

We add all the numbers together, and all the variables

7u-14=0

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

7u=14

u=14/7

u=2

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