Solve the system if possible by using Cramer's rule. If Cramer's rule does not apply, solve the system by using another method. Write all numbers as integers or simplified fractions.

7x + 6y + 4z = 10

3x + 3y + 3z - 1

4x + 4y + 4z = 2

Part: 0/2

Part 1 of 2

Evaluate the determinants D, Dx Dy and Dz.

D=

Dx=

Dy=

Dz=

Question

Mathematics

Guest

12 April, 07:00

Solve the system if possible by using Cramer's rule. If Cramer's rule does not apply, solve the system by using another method. Write all numbers as integers or simplified fractions.

7x + 6y + 4z = 10

3x + 3y + 3z - 1

4x + 4y + 4z = 2

Part: 0/2

Part 1 of 2

Evaluate the determinants D, Dx Dy and Dz.

D=

Dx=

Dy=

Dz=

+1

Answers (1)

Know the Answer?

Elaine Fuller · Answer 1

D = 0, Dx = 4, Dy = - 6, Dz = 2

Step-by-step explanation:

As per cramer's rule,

D = | 7 6 4 | = 0

| 3 3 3 |

| 4 4 4 |

Dx = | 10 6 4 | = 4

| 1 3 3 |

| 2 4 4 |

Dy = | 7 10 4 | = - 6

| 3 1 3 |

| 4 2 4 |

Dz = | 7 6 10 | = 2

| 3 3 1 |

| 4 4 2 |