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31/2a=28
We move all terms to the left:
31/2a-(28)=0
Domain of the equation: 2a!=0We multiply all the terms by the denominator
a!=0/2
a!=0
a∈R
-28*2a+31=0
Wy multiply elements
-56a+31=0
We move all terms containing a to the left, all other terms to the right
-56a=-31
a=-31/-56
a=31/56
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