3x/4x=12

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Solution for 3x/4x=12 equation: 


x in (-oo:+oo)

((3*x)/4)*x = 12 // - 12

((3*x)/4)*x-12 = 0

3/4*x^2 = 12 // : 3/4

x^2 = 16

x^2 = 16 // ^ 1/2

abs(x) = 4

x = 4 or x = -4

x in { 4, -4 }

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