Question

PERQE5 ERA
90 6
1
06.
2)
TO
x-
1m 3
7
THES 2014'
9
412V RESORES
I COMMQ1 0790

Answer 1

Ответ:

смотри на фото

Пошаговое объяснение:

..........

Answer 2

Ответ:

7

Пошаговое объяснение:

5/6 / (1/4х - 7/12) - 1/2 = 3/14

5/6 / (1/4х - 7/12) = 3/14 + 1/2

5/6 / (1/4х - 7/12) = 3/14 + 7/14

5/6 / (1/4х - 7/12) = 10/14

1/4х - 7/12 = 5/6 : 10/14

1/4х - 7/12 = 5/6 * 14/10

1/4х - 7/12 = 1/3 * 7/2

1/4х - 7/12 = 7/6

1/4х = 7/6 + 7/12

1/4х = 14/12 + 7/12

1/4х = 21/12

х = 21/12 : 1/4

х = 21/12 * 4/1

х = 21/3 * 1/1

х = 21/3

х = 7