Question 617862
 {{{m<a +m< b =180         }}}


{{{  2x + 4 + 4x - 10 = 180}}}

{{{  6x  =  186}}}

{{{ cross(6)x/cross(6)  =  186/6       }}}

{{{ x =31  }}}

{{{  m<a = 2(31) + 4 = 66     }}}