X/2+20/x=7

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Solution for X/2+20/x=7 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

X/2+20/x = 7 // - 7

X/2+20/x-7 = 0

20*x^-1 = -(1/2*X-7) // : 20

x^-1 = (7-(1/2*X))/20

-1 < 0

1/(x^1) = (7-(1/2*X))/20 // * x^1

1 = x^1*((7-(1/2*X))/20) // : (7-(1/2*X))/20

20*(7-1/2*X)^-1 = x^1

x = 20*(7-1/2*X)^-1

x = 20*(7-1/2*X)^-1

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