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2/5(a)=9
We move all terms to the left:
2/5(a)-(9)=0
Domain of the equation: 5a!=0We multiply all the terms by the denominator
a!=0/5
a!=0
a∈R
-9*5a+2=0
Wy multiply elements
-45a+2=0
We move all terms containing a to the left, all other terms to the right
-45a=-2
a=-2/-45
a=2/45
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