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q in (-oo:+oo)
-(11*q)-3 = -((1/2)*(4*q-2))-2*q // + -((1/2)*(4*q-2))-2*q
(1/2)*(4*q-2)-(11*q)-(-2*q)-3 = 0
(1/2)*(4*q-2)-11*q+2*q-3 = 0
1/2*(4*q-2)-11*q+2*q-3 = 0
1/2*(4*q-2)-11*q+2*q-3 = 0
2*q-9*q-3-1 = 0
-7*q-3-1 = 0
-7*q-4 = 0
-7*q-4 = 0
-7*q-4 = 0 // + 4
-7*q = 4 // : -7
q = 4/(-7)
q = -4/7
q = -4/7
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