9(13-x)=9(20x-19)

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Solution for 9(13-x)=9(20x-19) equation: 



9(13-x)=9(20x-19)

We move all terms to the left:

9(13-x)-(9(20x-19))=0

We add all the numbers together, and all the variables

9(-1x+13)-(9(20x-19))=0

We multiply parentheses

-9x-(9(20x-19))+117=0



We calculate terms in parentheses: -(9(20x-19)), so:

9(20x-19)

We multiply parentheses

180x-171

Back to the equation:

-(180x-171)



We get rid of parentheses

-9x-180x+171+117=0

We add all the numbers together, and all the variables

-189x+288=0

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

-189x=-288

x=-288/-189

x=1+11/21

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