(2m-9)/(3-m)=(7)/(4)

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Solution for (2m-9)/(3-m)=(7)/(4) equation: 


D( m )

3-m = 0

3-m = 0

3-m = 0

3-m = 0 // - 3

-m = -3 // * -1

m = 3

m in (-oo:3) U (3:+oo)

(2*m-9)/(3-m) = 7/4 // - 7/4

(2*m-9)/(3-m)-(7/4) = 0

(2*m-9)/(3-m)-7/4 = 0

(4*(2*m-9))/(4*(3-m))+(-7*(3-m))/(4*(3-m)) = 0

4*(2*m-9)-7*(3-m) = 0

15*m-57 = 0

(15*m-57)/(4*(3-m)) = 0

(15*m-57)/(4*(3-m)) = 0 // * 4*(3-m)

15*m-57 = 0

15*m-57 = 0 // + 57

15*m = 57 // : 15

m = 57/15

m = 19/5

m = 19/5

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