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60=255-x
We move all terms to the left:
60-(255-x)=0
We add all the numbers together, and all the variables
-(-1x+255)+60=0
We get rid of parentheses
1x-255+60=0
We add all the numbers together, and all the variables
x-195=0
We move all terms containing x to the left, all other terms to the right
x=195
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