(4d+1)/(d+9)=-3/-2

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Solution for (4d+1)/(d+9)=-3/-2 equation:


D( d )

d+9 = 0

d+9 = 0

d+9 = 0

d+9 = 0 // - 9

d = -9

d in (-oo:-9) U (-9:+oo)

(4*d+1)/(d+9) = -3/(-2) // + -3/(-2)

(4*d+1)/(d+9)-(-3/(-2)) = 0

(4*d+1)/(d+9)-3/2 = 0

(2*(4*d+1))/(2*(d+9))+(-3*(d+9))/(2*(d+9)) = 0

2*(4*d+1)-3*(d+9) = 0

5*d-25 = 0

(5*d-25)/(2*(d+9)) = 0

(5*d-25)/(2*(d+9)) = 0 // * 2*(d+9)

5*d-25 = 0

5*d-25 = 0 // + 25

5*d = 25 // : 5

d = 25/5

d = 5

d = 5

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