Решите уравнениеа)2 целых 2/11(1/3x+1/15)=2,4б)3 целых 1/2:(1/6x+5/8)=2целых 1/3в)3 целых

А)
2 целых 2/11(1/3x+1/15)=2,4
1/3x+1/15=24/10 *11/24
1/3x+1/15=11/10
1/3x=11/10 - 1/15
1/3x = 33/30 - 2/30
1/3x = 31/30
x=31/30 * 3/1
x=31/10
x=3,1


б)
3 целых 1/2:(1/6x+5/8)=2целых 1/3
1/6x + 5/8 = 3 1/2 : 2 1/3
1/6x + 5/8 = 7/2 * 3/7
1/6x + 5/8 = 3/2
1/6x = 3/2 - 5/8
1/6x = 12/8 - 5/8
1/6x = 7/8
x = 7/8 * 6/1
x = 21/4
x = 5,25

в)
3 целых 3/8:(1 целая 1/14x+5/7)=2 целых 1/10
1 1/14x + 5/7 = 3 3/8 : 2 1/10
1 1/14x + 5/7 = 27/8 * 10/21
1 1/14x + 5/7 = 45/28
1 1/14x = 45/28 - 5/7
1 1/14x = 45/28 - 20/28
1 1/14x = 25/28
x = 25/28 : 1 1/14
x = 25/28 * 14/15
x = 5/6


г)
45(2 целых 7/9x+1целая2/15x+1целая2/15x)=176
45*(25/9x + 17/15x + 17/15x)=176
125x + 51x + 51x = 176
227x = 176
x = 176:227
x = 176/227


д)
(4целых 2/7y -1 целая 1/6)84=82
(30/7y - 7/6)*84 = 82
360y - 98 = 82
360y = 82+98
360y = 180
y = 180:360
 y=0,5