121=x-9

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Solution for 121=x-9 equation: 



121=x-9

We move all terms to the left:

121-(x-9)=0

We get rid of parentheses

-x+9+121=0

We add all the numbers together, and all the variables

-1x+130=0

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

-x=-130

x=-130/-1

x=+130

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