(11x-9)+(9+9x)=180

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Solution for (11x-9)+(9+9x)=180 equation: 



(11x-9)+(9+9x)=180

We move all terms to the left:

(11x-9)+(9+9x)-(180)=0

We add all the numbers together, and all the variables

(11x-9)+(9x+9)-180=0

We get rid of parentheses

11x+9x-9+9-180=0

We add all the numbers together, and all the variables

20x-180=0

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

20x=180

x=180/20

x=9

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