285=55-x

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Solution for 285=55-x equation: 



285=55-x

We move all terms to the left:

285-(55-x)=0

We add all the numbers together, and all the variables

-(-1x+55)+285=0

We get rid of parentheses

1x-55+285=0

We add all the numbers together, and all the variables

x+230=0

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

x=-230

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