Решить, буду благодарна:

1) х + 2 целых 17/20 = 3 целых 1/2

2) - 5 целых 1/3 * х = 56/69

3) х - 6 целых 3/20 = - 39/40

4) х : (-1 целая 1/2) = 13/20

5) 5/8 у-3/4=2 у-2 целых 2/5

1) x+2 (17/20) = 3 (1/2)

x + (57/20) = (7/2)

x = (7/2) - (57/20)

x = (140/40) - (114/40)

x=26/40

x=13/20

x=0,65

2) - 5 (1/3) * x=56/69

- (16/3) * x=56/69

x = - ((56*3) / (69*16))

x = - (56 / (23*16))

x = - (14 / (23*4))

x = - (14/92)

x = - (7/46)

3) x / - (1 (1/2)) = 13/20

-2x/3=13/20

-2x = (13*3) / 20

x=-39/40

4) (5/8) y - (3/4) = 2y - 2 (2/5)

(5/8) y-2y = - (12/5) + (3/4)

(5/8) y - (16/8) y = - (48/20) + (15/20)

- (11/8) y = - (33/20)

y = (33*8) / (20*11)

y = (3*4) / 10

y = 12/10

y = 1,2