(2x/3x+7)-(3x/3x-7)

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Solution for (2x/3x+7)-(3x/3x-7) equation: 


x in (-oo:+oo)

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

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

-1/3*x^2 = -14 // : -1/3

x^2 = 42

x^2 = 42 // ^ 1/2

abs(x) = 42^(1/2)

x = 42^(1/2) or x = -42^(1/2)

x in { 42^(1/2), -42^(1/2) }

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