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

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



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

We move all terms to the left:

-7u-1-(-3(u+3))=0



We calculate terms in parentheses: -(-3(u+3)), so:

-3(u+3)

We multiply parentheses

-3u-9

Back to the equation:

-(-3u-9)



We get rid of parentheses

-7u+3u+9-1=0

We add all the numbers together, and all the variables

-4u+8=0

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

-4u=-8

u=-8/-4

u=+2

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