(9x+-4)=(12x+-55)

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Solution for (9x+-4)=(12x+-55) equation: 



(9x+-4)=(12x+-55)

We move all terms to the left:

(9x+-4)-((12x+-55))=0

We add all the numbers together, and all the variables

(9x-4)-((12x-55))=0

We get rid of parentheses

9x-((12x-55))-4=0



We calculate terms in parentheses: -((12x-55)), so:

(12x-55)

We get rid of parentheses

12x-55

Back to the equation:

-(12x-55)



We get rid of parentheses

9x-12x+55-4=0

We add all the numbers together, and all the variables

-3x+51=0

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

-3x=-51

x=-51/-3

x=+17

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