7=7x/3x+4

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Solution for 7=7x/3x+4 equation: 


x in (-oo:+oo)

7 = ((7*x)/3)*x+4 // - ((7*x)/3)*x+4

7-(((7*x)/3)*x)-4 = 0

(-7/3)*x^2-4+7 = 0

-7/3*x^2 = -3 // : -7/3

x^2 = 9/7

x^2 = 9/7 // ^ 1/2

abs(x) = (9/7)^(1/2)

x = (9/7)^(1/2) or x = -(9/7)^(1/2)

x in { (9/7)^(1/2), -(9/7)^(1/2) }

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