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

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


q in (-oo:+oo)

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

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

(-5/7)*q^2+(-4/7)*q+3+4+4 = 0

11-5/7*q^2-4/7*q = 0

DELTA = (-4/7)^2-(-5/7*4*11)

DELTA = 1556/49

DELTA > 0

q = ((1556/49)^(1/2)+4/7)/(-5/7*2) or q = (4/7-(1556/49)^(1/2))/(-5/7*2)

q = -7/10*((1556/49)^(1/2)+4/7) or q = -7/10*(4/7-(1556/49)^(1/2))

q in { -7/10*((1556/49)^(1/2)+4/7), -7/10*(4/7-(1556/49)^(1/2)) }

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