Math  /  Algebra

Question7. Find the values of x,yx, y and zz in the following scalar multiplication. 4[xy1z]=[12844]-4\left[\begin{array}{cc} x & y \\ -1 & z \end{array}\right]=\left[\begin{array}{cc} -12 & 8 \\ 4 & 4 \end{array}\right]

Studdy Solution
Solve each equation for x x , y y , and z z :
1. Solve 4x=12-4x = -12: $ x = \frac{-12}{-4} = 3 \]
2. Solve 4y=8-4y = 8: $ y = \frac{8}{-4} = -2 \]
3. Solve 4z=4-4z = 4: $ z = \frac{4}{-4} = -1 \]
The values of x x , y y , and z z are:
x=3,y=2,z=1 x = 3, \quad y = -2, \quad z = -1

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