3/q-4=7/q-5

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Solution for 3/q-4=7/q-5 equation: 


D( q )

q = 0

q = 0

q = 0

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

3/q-4 = 7/q-5 // - 7/q-5

3/q-(7/q)-4+5 = 0

3/q-7*q^-1-4+5 = 0

-4*q^-1 = -1 // : -4

q^-1 = 1/4

-1 < 0

1/(q^1) = 1/4 // * q^1

1 = 1/4*q^1 // : 1/4

4 = q^1

q = 4

q = 4

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