-9u-1=-4(u+4)

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Solution for -9u-1=-4(u+4) equation: 



-9u-1=-4(u+4)

We move all terms to the left:

-9u-1-(-4(u+4))=0



We calculate terms in parentheses: -(-4(u+4)), so:

-4(u+4)

We multiply parentheses

-4u-16

Back to the equation:

-(-4u-16)



We get rid of parentheses

-9u+4u+16-1=0

We add all the numbers together, and all the variables

-5u+15=0

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

-5u=-15

u=-15/-5

u=+3

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