Помогите пжжжжж Решите методом подстановки систему уравнений:
1)
x – 5y = 8,
2x + 4y = 30;
3)
5a – 3b = 14,
2a + b = 10;
2)
2x – y = 1,
7x – 6y = –4;
4)
2x – 3y = 2,
4x – 5y = 1.
1)
x – 5y = 8,
2x + 4y = 30;
3)
5a – 3b = 14,
2a + b = 10;
2)
2x – y = 1,
7x – 6y = –4;
4)
2x – 3y = 2,
4x – 5y = 1.