7/(y+7)=-3

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Solution for 7/(y+7)=-3 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)

7/(y+7) = -3 // + 3

7/(y+7)+3 = 0

7/(y+7)+(3*(y+7))/(y+7) = 0

3*(y+7)+7 = 0

3*y+28 = 0

(3*y+28)/(y+7) = 0

(3*y+28)/(y+7) = 0 // * y+7

3*y+28 = 0

3*y+28 = 0 // - 28

3*y = -28 // : 3

y = -28/3

y = -28/3

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