$$1139\ 16\ 5\ i(c-89\ 3)=1205$$
$c=267-\frac{241}{18224}i\approx 267-0.01322432i$
$$18224\times \left(5i\right)\left(c-89\times 3\right)=1205$$
$$91120i\left(c-89\times 3\right)=1205$$
$$91120i\left(c-267\right)=1205$$
$$91120ic-24329040i=1205$$
$$91120ic=1205+24329040i$$
$$c=\frac{1205+24329040i}{91120i}$$
$$c=\frac{\left(1205+24329040i\right)i}{91120i^{2}}$$
$$c=\frac{\left(1205+24329040i\right)i}{-91120}$$
$$c=\frac{1205i+24329040i^{2}}{-91120}$$
$$c=\frac{1205i+24329040\left(-1\right)}{-91120}$$
$$c=\frac{-24329040+1205i}{-91120}$$
$$c=267-\frac{241}{18224}i$$
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