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3/10-a=1/2
We move all terms to the left:
3/10-a-(1/2)=0
We add all the numbers together, and all the variables
-a+3/10-(+1/2)=0
We add all the numbers together, and all the variables
-1a+3/10-(+1/2)=0
We get rid of parentheses
-1a+3/10-1/2=0
We calculate fractions
There is no solution for this equation
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