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Solve the System of Equations by Using the Inverse of the Coefficient

Question 107

Multiple Choice

Solve the system of equations by using the inverse of the coefficient matrix.
- x2y+3z=3yz+w=62x+2y2z+4w=182y3z+w=10\begin{array}{rr}x-2 y+3 z & =3 \\y-z+w & =-6 \\-2 x+2 y-2 z+4 w & =-18 \\2 y-3 z+w & =-10\end{array}


A) (2,3,3,6) (-2,3,3,-6)
B) (2,2,3,5) (-2,2,3,-5)
C) (3,2,4,5) (-3,2,4,-5)
D) (1,1,2,4) (-1,1,2,-4)

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