7-x/3x+12

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Solution for 7-x/3x+12 equation: 


x in (-oo:+oo)

7-((x/3)*x)+12 = 0

(-1/3)*x^2+7+12 = 0

-1/3*x^2 = -19 // : -1/3

x^2 = 57

x^2 = 57 // ^ 1/2

abs(x) = 57^(1/2)

x = 57^(1/2) or x = -57^(1/2)

x in { 57^(1/2), -57^(1/2) }

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