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-1/5a=30
We move all terms to the left:
-1/5a-(30)=0
Domain of the equation: 5a!=0We multiply all the terms by the denominator
a!=0/5
a!=0
a∈R
-30*5a-1=0
Wy multiply elements
-150a-1=0
We move all terms containing a to the left, all other terms to the right
-150a=1
a=1/-150
a=-1/150
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