180=8x+(9-x)

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



180=8x+(9-x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(8x+(-1x+9))+180=0



We calculate terms in parentheses: -(8x+(-1x+9)), so:

8x+(-1x+9)

We get rid of parentheses

8x-1x+9

We add all the numbers together, and all the variables

7x+9

Back to the equation:

-(7x+9)



We get rid of parentheses

-7x-9+180=0

We add all the numbers together, and all the variables

-7x+171=0

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

-7x=-171

x=-171/-7

x=24+3/7

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