Ответ:

x = - 10

y = 41/8

Объяснение:

3x + 8y = 11

4x + 8y = 1

8y = 11 - 3x

4x + 8y = 1

4x + 11 - 3x = 1

x = - 10

4 × ( - 10 ) + 8y = 1

y = 41/8

3 × ( - 10 ) + 8 × 41/8 = 11

4 × ( - 10 ) + 8 × 41/8 = 1

11 = 11

1 = 1

x = - 10

y = 41/8