-1=10-x-2

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Solution for -1=10-x-2 equation: 



-1=10-x-2

We move all terms to the left:

-1-(10-x-2)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

1x-8-1=0

We add all the numbers together, and all the variables

x-9=0

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

x=9

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