-6=7u+8(u+3)

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Solution for -6=7u+8(u+3) equation: 



-6=7u+8(u+3)

We move all terms to the left:

-6-(7u+8(u+3))=0



We calculate terms in parentheses: -(7u+8(u+3)), so:

7u+8(u+3)

We multiply parentheses

7u+8u+24

We add all the numbers together, and all the variables

15u+24

Back to the equation:

-(15u+24)



We get rid of parentheses

-15u-24-6=0

We add all the numbers together, and all the variables

-15u-30=0

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

-15u=30

u=30/-15

u=-2

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