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85/a=3.5
We move all terms to the left:
85/a-(3.5)=0
Domain of the equation: a!=0We add all the numbers together, and all the variables
a∈R
85/a-3.5=0
We multiply all the terms by the denominator
-(3.5)*a+85=0
We multiply parentheses
-3.5a+85=0
We move all terms containing a to the left, all other terms to the right
-3.5a=-85
a=-85/-3.5
a=24+1/3.5
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