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200=47-y
We move all terms to the left:
200-(47-y)=0
We add all the numbers together, and all the variables
-(-1y+47)+200=0
We get rid of parentheses
1y-47+200=0
We add all the numbers together, and all the variables
y+153=0
We move all terms containing y to the left, all other terms to the right
y=-153
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