Question 914829
{{{x^2+9i^2+6xi=2yi}}}
{{{x^2+6xi-9=2yi}}}
{{{x^2-9+6xi=2yi}}}
{{{x^2-9+6xi=0+2yi}}}


{{{x^2-9=0}}} for the real parts.
{{{x^2=9}}}
{{{highlight(x=0+- 3)}}}


{{{6x=2y}}} for the imaginary parts.
{{{3x=y}}}
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choosing {{{x=-3}}}, {{{y=-9}}};
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choosing {{{x=3}}}, {{{y=9}}}.
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Corresponding parts between two equal expressions