3(7a+4)=12

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Solution for 3(7a+4)=12 equation: 


a in (-oo:+oo)

3*(7*a+4) = 12 // - 12

3*(7*a+4)-12 = 0

3*(7*a+4)-12 = 0

21*a = 0

21*a = 0

21*a = 0 // : 21

a = 0

a = 0

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