-2 4/5 -3x =-1 1/4x расписать
1 1/4x-3x=2 4/5 -1 3/4x= 2 4/5 x= 2 4/5 :- 1 3/4 x= 14/5 * - 4/7 x= - 8/5 - 2 4/5-3 * - 8/5=-1 1/4* -8/5 - 14/5+24/5= -5/4* -8/5 10/5= 8/4 2= 2