Question

Помогите решить систему уравнений

Answer 1

2х - y = 10
x + 3y = - 3
x = - 3y - 3
2( - 3y - 3 ) - y = 10
- 6y - 6 - y = 10
- 7y = 16
y = - 16/7 = - 2 2/7
x = - 3( - 16/7 ) - 3 = ( 48/7 ) - 3 = 6 ( 6/7 ) - 3 = 3 ( 6/7 )
Ответ ( 3 6/7 ; - 2 2/7 )