4x/3x=5x/15

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Solution for 4x/3x=5x/15 equation: 


x in (-oo:+oo)

((4*x)/3)*x = (5*x)/15 // - (5*x)/15

((4*x)/3)*x-((5*x)/15) = 0

((4*x)/3)*x+(-1/3)*x = 0

4/3*x^2-1/3*x = 0

DELTA = (-1/3)^2-(0*4/3*4)

DELTA = 1/9

DELTA > 0

x = ((1/9)^(1/2)+1/3)/(4/3*2) or x = (1/3-(1/9)^(1/2))/(4/3*2)

x = 1/4 or x = 0

x in { 0, 1/4 }

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