9x-9=-20+1+x+2

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Solution for 9x-9=-20+1+x+2 equation: 



9x-9=-20+1+x+2

We move all terms to the left:

9x-9-(-20+1+x+2)=0

We add all the numbers together, and all the variables

9x-(x-17)-9=0

We get rid of parentheses

9x-x+17-9=0

We add all the numbers together, and all the variables

8x+8=0

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

8x=-8

x=-8/8

x=-1

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