-9x=20+x*

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Solution for -9x=20+x* equation: 



-9x=20+x*

We move all terms to the left:

-9x-(20+x*)=0

We add all the numbers together, and all the variables

-9x-(x*+20)=0

We get rid of parentheses

-9x-x*-20=0

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

-9x-x*=20

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