Пошаговое объяснение:
3. 1/9 * (1. 5/28х - 0,3) = 1,5 - 5/6 * (7 - х)
28/9*(33/28х - 3/10) = 15/10 - 5/6*(7 - х)
28/9*33/28х - 28/9*3/10 = 15/10 - 35/6 + 5/6х
1/3*11/1х - 14/3*1/5 = 3/2 - 35/6 + 5/6х
11/3х - 14/15 = 9/6 - 35/6 + 5/6х
11/3х - 14/15 = -26/6 + 5/6х
11/3х - 5/6х = -26/6 + 14/15
22/6х - 5/6х = -130/30 + 28/30
17/6х = -102/30
х = -102/30 : 17/6
х = -102/30 * 6/17
х = -6/5 * 1/1
х = -6/5
х = -1. 1/5
Пошаговое объяснение:
3. 1/9 * (1. 5/28х - 0,3) = 1,5 - 5/6 * (7 - х)
28/9*(33/28х - 3/10) = 15/10 - 5/6*(7 - х)
28/9*33/28х - 28/9*3/10 = 15/10 - 35/6 + 5/6х
1/3*11/1х - 14/3*1/5 = 3/2 - 35/6 + 5/6х
11/3х - 14/15 = 9/6 - 35/6 + 5/6х
11/3х - 14/15 = -26/6 + 5/6х
11/3х - 5/6х = -26/6 + 14/15
22/6х - 5/6х = -130/30 + 28/30
17/6х = -102/30
х = -102/30 : 17/6
х = -102/30 * 6/17
х = -6/5 * 1/1
х = -6/5
х = -1. 1/5