3 2/7 + х = 5 3/7х = 5 3/7 - 3 2/7х = 2 1/7-------------------------------------3 2/7 + 2 1/7 = 5 3/75 3/7 = 5 3/73/4 * (х-1/4) = 1 5/163/4 * х - 3/4 * 1/4 = 1 5/163/4 * х - 3/16 = 1 5/163/4 * х = 1 5/16 + 3/163/4 * х = 1 8/163/4 * х = 1 1/2х = 1 1/2 : 3/4 = 3/2 * 4/3 = 4/2х=2-------------------------------------3/4 * (2 - 1/4) = 1 5/163/4 * 1 3/4 = 1 5/163/4 * 7/4 = 1 5/1621/16 = 1 5/161 5/16 = 1 5/16х + 8 3/7 = 9 х = 9 - 8 3/7 х = 4/7------------------------------------4/7 + 8 3/7 = 98 + 7/7 = 98 + 1 = 99=9(3 4/5 - х ) : 12/13 = 13/203 4/5 - х = 13/20 * 12/133 4/5 - х = 12/203 4/5 - х = 3/5х=3 4/5 - 3/5 х= 3 1/5----------------------------------------(3 4/5 - 3 1/5) : 12/13 = 13/203/5 : 12/13 = 13/203/5 * 13/12 = 13/2013/20 = 13/205 2/3 * (12-х) = 1 5/1212 - х = 1 5/12 : 5 2/312 - х = 17/12 * 3/1712 - х = 3/1212 - х = 1/4х= 12 - 1/4х = 11 3/4------------------------------------------5 2/3 * (12 - 11 3/4) = 1 5/1217/3 * 1/4 = 1 5/1217/12 = 1 5/121 5/12 = 1 5/12(х - 2 1/8) : 7 5/6 = 1х - 2 1/8 = 1 * 7 5/6х = 7 5/6+ 2 1/8 = 7 20/24 + 2 3/24 х = 9 23/24----------------------------------------------(9 23/24 - 2 1/8) : 7 5/6 = 1(9 23/24 - 2 3/24) : 7 5/6 = 17 20/24 : 7 5/6 =17 5/6 : 7 5/6 = 11=13 2/5 - х = 1 7/15х = 3 2/5 - 1 7/15 = 3 6/15 - 1 7/15 = 1+ ( 21/15 - 7/15)х =1 14/15--------------------------------------------3 2/5 - 1 14/15 = 1 7/153 6/15 - 1 14/15 = 1 7/1551/15 - 29/15 = 1 7/1522/15 = 1 7/151 7/15 = 1 7/15(10-х) : 12/35 = 35/1210-х = 35/12 * 12/3510-х=1х=10-1х=9------------------------------(10-9) : 12/35 = 35/121 : 12/35 = 35/121 * 35/12 = 35/1235/12=35/122 11/12 = 2 11/12