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Use inverse Matrix to Solve Linear System.

0 votes
3x - 7y = -16
-2x+ 4y = 8
Thanks a lot for your time.
asked Mar 17, 2014 in ALGEBRA 2 by andrew Scholar

1 Answer

0 votes

Given equations are 3x - 7y  = -16 and -2x + 4y  = 8.

Write the equations in to matrix form image.

image

A  is coefficient matrix , X  is variable matrix and is constant matrix.

image

image

For image it's inverse is image.

image

image

image

Substitute the above value in equation (1).

image

image

image

Solution

image

answered Mar 28, 2014 by david Expert

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