4/y=20/10

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Solution for 4/y=20/10 equation: 


D( y )

y = 0

y = 0

y = 0

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

4/y = 20/10 // - 20/10

4/y-(20/10) = 0

4/y-2 = 0

4*y^-1 = 2 // : 4

y^-1 = 1/2

-1 < 0

1/(y^1) = 1/2 // * y^1

1 = 1/2*y^1 // : 1/2

2 = y^1

y = 2

y = 2

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