Question 175994
{{{7x +9y = -12 }}}
{{{-6x +5y = 6 }}}

{{{5y = 6x+6}}}
{{{y = (6x+6)/5 }}}
{{{7x + 9 (6x+6)/5 = -12 }}}
{{{7x + (54x +54)/5 = -12 }}}
{{{(35x + 54x +54)/5 = -12 }}}
{{{89x +54 = -60 }}}
{{{89x = -114 }}}
{{{x = (-114/89) or 1.28 }}}

{{{ 7(-114/89) + 9y = -12 }}}
{{{-8.966 + 9y = -12 }}}
{{{9y = -20.966}}}
{{{y = -2.330}}}