Question 136140
{{{2x-5=9x+7}}} or {{{2x-5=-(9x+7)}}}


(Actually, if you have |a|=|b|, then
a = b, or
-a = b, or
a = -b, or 
-a = - b
But the first and fourth situations are equivalent, and the second and third situations are equivalent, so you really only have two different situations.)


{{{-9x+2x=5+7}}} or {{{9x+2x=5-7}}}


{{{-7x=12}}} or {{{11x=-2}}}


{{{x=-12/7}}} or {{{x=-2/11}}}


You should check these answers by substituting them into the original equation to see if doing so results in true statements.