Cos(12)=x/18

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Solution for Cos(12)=x/18 equation: 


x in (-oo:+oo)

cos(12) = x/18 // - x/18

cos(12)-(x/18) = 0

cos(12)-1/18*x = 0 // - cos(12)

-1/18*x = -cos(12) // : -1/18

x = -cos(12)/(-1/18)

x = 18*cos(12)

x = 18*cos(12)

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