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200-x/200=0.40
We move all terms to the left:
200-x/200-(0.40)=0
We add all the numbers together, and all the variables
-x/200+200-(0.4)=0
We add all the numbers together, and all the variables
-x/200+199.6=0
We multiply all the terms by the denominator
-x+(199.6)*200=0
We add all the numbers together, and all the variables
-1x+39920=0
We move all terms containing x to the left, all other terms to the right
-x=-39920
x=-39920/-1
x=+39920
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