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12/2a=6
We move all terms to the left:
12/2a-(6)=0
Domain of the equation: 2a!=0We multiply all the terms by the denominator
a!=0/2
a!=0
a∈R
-6*2a+12=0
Wy multiply elements
-12a+12=0
We move all terms containing a to the left, all other terms to the right
-12a=-12
a=-12/-12
a=1
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