(x-9)+(8x)=180

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Solution for (x-9)+(8x)=180 equation: 



(x-9)+(8x)=180

We move all terms to the left:

(x-9)+(8x)-(180)=0

We add all the numbers together, and all the variables

8x+(x-9)-180=0

We get rid of parentheses

8x+x-9-180=0

We add all the numbers together, and all the variables

9x-189=0

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

9x=189

x=189/9

x=21

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