9-8a1/2+12=0

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Solution for 9-8a1/2+12=0 equation: 


a in (-oo:+oo)

9-((8*a^1)/2)+12 = 0

9-4*a+12 = 0

21-4*a = 0 // - 21

-4*a = -21 // : -4

a = -21/(-4)

a = 21/4

a = 21/4

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