-1=3u-7

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Solution for -1=3u-7 equation: 



-1=3u-7

We move all terms to the left:

-1-(3u-7)=0

We get rid of parentheses

-3u+7-1=0

We add all the numbers together, and all the variables

-3u+6=0

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

-3u=-6

u=-6/-3

u=+2

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