Question 14590
{{{2-3(q-1) = 10-(q+1)}}}
{{{2-3*q+3*1 = 10-q-1}}}
{{{2-3q+3 = 10-q-1}}}
{{{2+3-3q = 10-1-q}}}
{{{5-3q = 9-q}}}
{{{-3q+q = 9-5}}}
{{{-2q = 4}}}
{{{(-2q)/(-2) = 4/-2}}}
q=-2

OK