(7x-9)+(7x-9)+(x+3)=180

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Solution for (7x-9)+(7x-9)+(x+3)=180 equation: 



(7x-9)+(7x-9)+(x+3)=180

We move all terms to the left:

(7x-9)+(7x-9)+(x+3)-(180)=0

We get rid of parentheses

7x+7x+x-9-9+3-180=0

We add all the numbers together, and all the variables

15x-195=0

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

15x=195

x=195/15

x=13

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