-3-7u=2-7u-u

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Solution for -3-7u=2-7u-u equation: 



-3-7u=2-7u-u

We move all terms to the left:

-3-7u-(2-7u-u)=0

We add all the numbers together, and all the variables

-7u-(-8u+2)-3=0

We get rid of parentheses

-7u+8u-2-3=0

We add all the numbers together, and all the variables

u-5=0

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

u=5

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