44n+33n=154. 77n=154/77. n=2
(2/3+1/7)|x|=8.5
(14/21+3/21)|x|=8.5
17/21|x|=8.5
|x|=(85/10):(17/21)
|x|=(85/10)*(21/17)
|x|=(17/2)*(21/17)
|x|=10.5
x1=10.5, x2=-10.5
(6 7/12 - 3 17/36) * 2 1/2 - 4 1/3 : 13/20 = 1 целая 1/9
1) 6 7/12 - 3 17/36 = 6 21/36 - 3 17/36 = 3 4/36 = 3 1/9
2) 3 1/9 * 2 1/2 = 28/9 * 5/2 = (14*5)/(9*1) = 70/9 = 7 7/9
3) 4 1/3 : 13/20 = 13/3 * 20/13 = 20/3 = 6 2/3
4) 7 7/9 - 6 2/3 = 7 7/9 - 6 6/9 = 1 1/9