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9/10a=2/5
We move all terms to the left:
9/10a-(2/5)=0
Domain of the equation: 10a!=0We add all the numbers together, and all the variables
a!=0/10
a!=0
a∈R
9/10a-(+2/5)=0
We get rid of parentheses
9/10a-2/5=0
We calculate fractions
There is no solution for this equation
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