Y^2-4=2y-1

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Solution for Y^2-4=2y-1 equation: 



^2-4=2Y-1

We move all terms to the left:

^2-4-(2Y-1)=0

We add all the numbers together, and all the variables

-(2Y-1)=0

We get rid of parentheses

-2Y+1=0

We move all terms containing Y to the left, all other terms to the right

-2Y=-1

Y=-1/-2

Y=1/2

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