Question

Solve this equations system.
x y z =4

2x+ 5y+ 2z= 14

x+ 9y -3z= 4

Answer 1

(x, y, z) = (-2, 2, 4)

Explanation:

You want the solution to the equations ...

• x + y + z = 4
• 2x +5y +2z = 14
• x +9y -3z = 4

Matrix

The coefficients of these equations can be written as an augmented matrix. The reduced row-echelon form of that matrix gives the solutions to the equations:

(x, y, z) = (-2, 2, 4)

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