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Solve the system using Cramer's Rule.
2x+6y-z = -2
-5x - 2y4z = 5
3x + 4y + 5z = 5
-
Find the determinant D (denominator).
D=
Find the determinant D, associated with z.
Dz = -3
Find the determinant D, associated with y.
Dy
=1
Find the determinant D, associated with z.
D₂ = 2
The solution is (x, y, z) = (-3
2

Sagot :

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