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-1/3x-(-2/7)=-5/21
We move all terms to the left:
-1/3x-(-2/7)-(-5/21)=0
Domain of the equation: 3x!=0We get rid of parentheses
x!=0/3
x!=0
x∈R
-1/3x+2/7+5/21=0
We calculate fractions
There is no solution for this equation
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