Ответ Автор - 11ksenya (x+4 2/7) - 3 6/7 =6x+4 2/7=6+3 6/7x+4 2/7=9 6/7x = 9 6/7 - 4 2/7x = 5 4/79 5/13-(7 6/13-Y)=2 3/137 6/13-Y = - 9 5/13+2 3/137 6/13-Y = - 7 2/13Y = 7 6/13- 7 2/13Y = 4/13
Ответ Автор - vipsmile666 (x+4 2/7) - 3 6/7 =6№1x+4 2/7=6+3 6/7x+4 2/7=9 6/7x = 9 6/7 - 4 2/7x = 5 4/7№29 5/13-(7 6/13-Y)=2 3/137 6/13-Y = - 9 5/13+2 3/137 6/13-Y = - 7 2/13Y = 7 6/13- 7 2/13Y = 4/13