Has general form

${\displaystyle Ax=0}$	${\displaystyle x=0}$
${\displaystyle Ax=C}$	${\displaystyle x={\frac {C}{A}}}$
${\displaystyle Ax+B=C}$	${\displaystyle x={\frac {C-B}{A}}}$
${\displaystyle Ax+By=C}$	${\displaystyle x={\frac {C}{A}}}$ with ${\displaystyle y=0}$ ${\displaystyle y={\frac {C}{B}}}$ with ${\displaystyle x=0}$