Question 566345
substitute your y into the original problem.
{{{ -6x-2y= -8 }}} {{{ y= -3x+4 }}}
{{{ -6x-2(-3x+4)= -8 }}}
{{{ -6x+6x-8= -8 }}} *distributive property
{{{ 0-8= -8 }}}
{{{ -8= -8 }}}