7/y=21/18

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Solution for 7/y=21/18 equation:


D( y )

y = 0

y = 0

y = 0

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

7/y = 21/18 // - 21/18

7/y-(21/18) = 0

7/y-7/6 = 0

7*y^-1 = 7/6 // : 7

y^-1 = 1/6

-1 < 0

1/(y^1) = 1/6 // * y^1

1 = 1/6*y^1 // : 1/6

6 = y^1

y = 6

y = 6

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