12=9x-(5+4x)

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Solution for 12=9x-(5+4x) equation: 



12=9x-(5+4x)

We move all terms to the left:

12-(9x-(5+4x))=0

We add all the numbers together, and all the variables

-(9x-(4x+5))+12=0



We calculate terms in parentheses: -(9x-(4x+5)), so:

9x-(4x+5)

We get rid of parentheses

9x-4x-5

We add all the numbers together, and all the variables

5x-5

Back to the equation:

-(5x-5)



We get rid of parentheses

-5x+5+12=0

We add all the numbers together, and all the variables

-5x+17=0

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

-5x=-17

x=-17/-5

x=3+2/5

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