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