Решите системы уравнений сложения 2x+y=11, [5x-2y=6,
а)
6)
2х – у = 9; (7x+2y = 6,
x+3y — 17, 4x+3y=-15,
І)
2у —x — 13; 5x+3y = -3;
х
2y – 3x = 6,
x+4y = 2; у — 3x = 9;
4x 5y = 22, 7x = 9 у.
К)
3x+2y = 18; 5x+3y = 66;
4x+7y = 40,
B)
4x+2y= 24;
2x – бу = 1,
4x-5y = 7;
14x + 3y = -4
И)
бx – бу = -7;
5х +6y = 0,
1)
3х + 4 y = 4.
ж) + 5 = 3,
3)