368X +5,214Y = 7,318 B) 1,372X - 4,915Y = 3,123-2X -8Y + Z = -174X + Y - 2Z = -1 X + 6Y + 3Z = 1 8X - Z = 16 B)

8, - BAI THUC HANH 10 CB C1
BAI THUC HANH 10 CB C1

8,368x +5,214y = 7,318

 b) 1,372x - 4,915y = 3,123

-2x -8y + z = -17

4x + y - 2z = -1

 

x + 6y + 3z = 1

8x - z = 16

b)