6x+(6x-9)+9x=180

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Solution for 6x+(6x-9)+9x=180 equation: 



6x+(6x-9)+9x=180

We move all terms to the left:

6x+(6x-9)+9x-(180)=0

We add all the numbers together, and all the variables

15x+(6x-9)-180=0

We get rid of parentheses

15x+6x-9-180=0

We add all the numbers together, and all the variables

21x-189=0

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

21x=189

x=189/21

x=9

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