Question
Asked Nov 19, 2019
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Solve for (y,z) for the following three equations by using determinants method

2x+6y-z=6    (1)

4x-3y+5z=-5   (2)

6x+9y-2z=11    (3)

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Expert Answer

Step 1

Given that

The system of equations is

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2x6y-z6 4х — 3у + 5z %3D—-5....... 2) бх +9у - 2 %3D11....(2)

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Step 2

To solve of (y, z) using determinant method

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Coefficient matrix is -1 2 6 4-3 5 6 9 -2

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Step 3

Determinant of coeffic...

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2 6 1 52(6-45)6(-8-30)-1(36 18) D 4 -3 6 -2 -1 2 6 538+228-54 D 4 -3 6 9 -2 -1 2 596 D 4 -3 6 -2

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Tagged in

Math

Algebra

Equations and In-equations