3=1/2+y

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Solution for 3=1/2+y equation:



3=1/2+y
We move all terms to the left:
3-(1/2+y)=0
Domain of the equation: 2+y)!=0
We move all terms containing y to the left, all other terms to the right
y)!=-2
y!=-2/1
y!=-2
y∈R
We add all the numbers together, and all the variables
-(+y+1/2)+3=0
We get rid of parentheses
-y+3-1/2=0
We multiply all the terms by the denominator
-y*2-1+3*2=0
We add all the numbers together, and all the variables
-y*2+5=0
Wy multiply elements
-2y+5=0
We move all terms containing y to the left, all other terms to the right
-2y=-5
y=-5/-2
y=2+1/2

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