Question

{2x+3y=16 {3x-2y=1
СИСТЕМА УРАВНЕНИЙ​

Answer 1

Ответ:

x = 3 7/13

y = 2 9/13

Объяснение:

3x - 2y = 1

3x = 1 + 2y

x = 1/3 + 2/3y

2x + 3y = 16

2(1/3 + 2/3y) + 3y = 16

2/3 + 4/3y + 3y = 16

3y + 4/3y = 16 - 2/3

13/3y = 46/3

y = 46/13 = 3 7/13

x = 1/3 + 2/3 * 46/13

x = 1/3 + 92/39

x = 13/39 + 92/39 = 105/39 = 35/13 = 2 9/13