7/x=2/1.8

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Solution for 7/x=2/1.8 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x = 2/1.8 // - 2/1.8

7/x-(2/1.8) = 0

7/x-1.11111111 = 0

7*x^-1 = 1.11111111 // : 7

x^-1 = 0.15873016

-1 < 0

1/(x^1) = 0.15873016 // * x^1

1 = 0.15873016*x^1 // : 0.15873016

6.29999995 = x^1

x = 6.29999995

x = 6.29999995

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