Question

Допоможіть будь ласка ​

Answer 1

Пошаговое объяснение:

(3/5х - 2 1/3) : 11/15 = 2,5

(3/5х - 2 1/3) * 15/11 = 5/2

3/5х * 15/11 - 7/3 * 15/11 = 5/2

9/11х - 35/11 = 5/2

9/11х = 5/2 + 35/11

9/11х = (11 * 5 + 2 * 35)/22

9/11х = (55 + 70)/22

9/11х = 125/22

х = 125/22 : 9/11

х = 125/22 * 11/9

х = 125/18

х = 6 17/18

Answer 2

Пошаговое объяснение:

(3/5х - 2 1/3) : 11/15 = 2,5

3/5х - 2 1/3 = 2,5 * 11/15

3/5х - 2 1/3 = 25/10 * 11/15

3/5х - 2 1/3 = 5/10 * 11/3

3/5х - 2 1/3 = 55/30

3/5х - 2 1/3 = 1 25/30

3/5х = 1 25/30 + 2 1/3

3/5х = 1 25/30 + 2 10/30

3/5х = 3 35/30

3/5х = 4 5/30

х = 4 5/30 : 3/5

х = 125/30 * 5/3

х = 125/6 * 1/3

х = 125/18

х = 6 17/18