Question

What is the solution to this system of equations?

x + 2y = 4
2x + 4z = 8
3y − z= 10

A. (-6, 5, 5)

B. (2, -4, 1)

C. no solutions

D. (1, 8, -2)

E. infinite solutions

Answer 1

A. (-6, 5, 5)

Explanation:

A suitable calculator can reduce the augmented matrix for the system.