3u-1=(-7)

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Solution for 3u-1=(-7) equation: 



3u-1=(-7)

We move all terms to the left:

3u-1-((-7))=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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