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9/4-5a=4
We move all terms to the left:
9/4-5a-(4)=0
determiningTheFunctionDomain -5a-4+9/4=0
We multiply all the terms by the denominator
-5a*4+9-4*4=0
We add all the numbers together, and all the variables
-5a*4-7=0
Wy multiply elements
-20a-7=0
We move all terms containing a to the left, all other terms to the right
-20a=7
a=7/-20
a=-7/20
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