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4/5a-13=3
We move all terms to the left:
4/5a-13-(3)=0
Domain of the equation: 5a!=0We add all the numbers together, and all the variables
a!=0/5
a!=0
a∈R
4/5a-16=0
We multiply all the terms by the denominator
-16*5a+4=0
Wy multiply elements
-80a+4=0
We move all terms containing a to the left, all other terms to the right
-80a=-4
a=-4/-80
a=1/20
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