1)x=2/3x+1 2)x-1/2
3)x-2/3=5/6x
4)1целая 4/5y=y+4.
5)2/3y-1/3=5/9y
6)3/4y-2/3 = 7/12y
Здравствуйте

Пошаговое объяснение:

1)x=(2/3)x + 1

x - (2/3)x = 1

(1/3)x = 1

x = 1 : 1/3

x = 3

2) x - 1/2 = (3/4)x

x - (3/4)x = 1/2

(1/4)x = 1/2

x = 1/2 : 1/4

x = 1/2 * 4/1

x = 2

3) x - 2/3 = (5/6)x

x - (5/6)x = 2/3

(1/6)x = 2/3

x = 2/3 : 1/6

x = 2/3 * 6/1

x = 4

4) (1 4/5)y = y + 4.

(1 4/5)y - y = 4

(4/5)y = 4

y = 4 : 4/5

y = 4 * 5/4

y = 5

5) (2/3)y - 1/3 = 5/9y

(2/3)y - (5/9)y = 1/3

(6/9)y - (5/9)y = 1/3

(1/9)y = 1/3

y = 1/3 : 1/9

y = 1/3 * 9/1

y = 3

6)(3/4)y - 2/3 = (7/12)y

(3/4)y - (7/12)y = 2/3

(9/12)y - (7/12)y = 2/3

(1/6)y = 2/3

y = 2/3 : 1/6

y = 2/3 * 6/1

y = 4