(10x-9)+4x-12=(11x+18)

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Solution for (10x-9)+4x-12=(11x+18) equation: 



(10x-9)+4x-12=(11x+18)

We move all terms to the left:

(10x-9)+4x-12-((11x+18))=0

We add all the numbers together, and all the variables

4x+(10x-9)-((11x+18))-12=0

We get rid of parentheses

4x+10x-((11x+18))-9-12=0



We calculate terms in parentheses: -((11x+18)), so:

(11x+18)

We get rid of parentheses

11x+18

Back to the equation:

-(11x+18)



We add all the numbers together, and all the variables

14x-(11x+18)-21=0

We get rid of parentheses

14x-11x-18-21=0

We add all the numbers together, and all the variables

3x-39=0

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

3x=39

x=39/3

x=13

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