Question 58805
{{{(15m+3)/2=-6}}}
{{{2(15m+3)/2=2(-6)}}}
{{{cross(2)(15m+3)/cross(2)=-12}}}
{{{15m+3=-12}}}
{{{15m+3-3=-12-3}}}
{{{15m=-15}}}
{{{15m/15=-15/15}}}
{{{highlight(m=-1)}}}
:
Check, by substituting -1 in for m and seeing if both sides equal.
{{{(15(-1)+3)/2=-6}}}
{{{(-15+3)/2=-6}}}
{{{-12/2=-6}}}
{{{-6=-6}}}  We're right!!!
Happy Calculating!!!