1/7(a-3)*(7a+4)=0

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Solution for 1/7(a-3)*(7a+4)=0 equation: 



1/7(a-3)(7a+4)=0



Domain of the equation: 7(a-3)(7a+4)!=0

a∈R



We multiply parentheses ..

1/7(+7a^2+4a-21a-12)=0

We multiply all the terms by the denominator


1!=0

There is no solution for this equation

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