-20=(2x-9)

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Solution for -20=(2x-9) equation: 



-20=(2x-9)

We move all terms to the left:

-20-((2x-9))=0



We calculate terms in parentheses: -((2x-9)), so:

(2x-9)

We get rid of parentheses

2x-9

Back to the equation:

-(2x-9)



We get rid of parentheses

-2x+9-20=0

We add all the numbers together, and all the variables

-2x-11=0

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

-2x=11

x=11/-2

x=-5+1/2

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