-12u=-9(u-2)

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Solution for -12u=-9(u-2) equation: 



-12u=-9(u-2)

We move all terms to the left:

-12u-(-9(u-2))=0



We calculate terms in parentheses: -(-9(u-2)), so:

-9(u-2)

We multiply parentheses

-9u+18

Back to the equation:

-(-9u+18)



We get rid of parentheses

-12u+9u-18=0

We add all the numbers together, and all the variables

-3u-18=0

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

-3u=18

u=18/-3

u=-6

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