1/(y-7)=4

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Solution for 1/(y-7)=4 equation: 


D( y )

y-7 = 0

y-7 = 0

y-7 = 0

y-7 = 0 // + 7

y = 7

y in (-oo:7) U (7:+oo)

1/(y-7) = 4 // - 4

1/(y-7)-4 = 0

1/(y-7)+(-4*(y-7))/(y-7) = 0

1-4*(y-7) = 0

29-4*y = 0

(29-4*y)/(y-7) = 0

(29-4*y)/(y-7) = 0 // * y-7

29-4*y = 0

29-4*y = 0 // - 29

-4*y = -29 // : -4

y = -29/(-4)

y = 29/4

y = 29/4

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