(x+11)+(2x+15)=(4x+9)

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Solution for (x+11)+(2x+15)=(4x+9) equation: 



(x+11)+(2x+15)=(4x+9)

We move all terms to the left:

(x+11)+(2x+15)-((4x+9))=0

We get rid of parentheses

x+2x-((4x+9))+11+15=0



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

(4x+9)

We get rid of parentheses

4x+9

Back to the equation:

-(4x+9)



We add all the numbers together, and all the variables

3x-(4x+9)+26=0

We get rid of parentheses

3x-4x-9+26=0

We add all the numbers together, and all the variables

-1x+17=0

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

-x=-17

x=-17/-1

x=+17

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