12=x/3.9

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Solution for 12=x/3.9 equation: 


x in (-oo:+oo)

12 = x/3.9 // - x/3.9

12-(x/3.9) = 0

12-0.25641026*x = 0

12-0.25641026*x = 0 // - 12

-0.25641026*x = -12 // : -0.25641026

x = -12/(-0.25641026)

x = 46.79999934

x = 46.79999934

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