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200=-200+0.3(y)
We move all terms to the left:
200-(-200+0.3(y))=0
We add all the numbers together, and all the variables
-(0.3y-200)+200=0
We get rid of parentheses
-0.3y+200+200=0
We add all the numbers together, and all the variables
-0.3y+400=0
We move all terms containing y to the left, all other terms to the right
-0.3y=-400
y=-400/-0.3
y=1333+0.10000000000002/0.3
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