4/7 х + 5/14 х -10 / 21 х =1/7
24/42 х + 15/42 х - 20 /42х = 1/7
19/42 х = 1/7
х = 1/7 / 19 /42
х = 6 /19
4/7x+5/14x-10/21x=1/7
19/42х = 1/7
х = 6/19
ответ: 6/19
4/7 х + 5/14 х -10 / 21 х =1/7
24/42 х + 15/42 х - 20 /42х = 1/7
19/42 х = 1/7
х = 1/7 / 19 /42
х = 6 /19
4/7x+5/14x-10/21x=1/7
19/42х = 1/7
х = 6/19
ответ: 6/19