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0.5=250-10Y
We move all terms to the left:
0.5-(250-10Y)=0
We add all the numbers together, and all the variables
-(-10Y+250)+0.5=0
We get rid of parentheses
10Y-250+0.5=0
We add all the numbers together, and all the variables
10Y-249.5=0
We move all terms containing Y to the left, all other terms to the right
10Y=249.5
Y=249.5/10
Y=24+6.33333333333/6.66666666667
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