Solve the following system of equations by using the inverse of the coefficient matrix A. (AX=B), x+5y=-10, -2x+7y=-31

Jaylene Hunter 2022-07-26 Answered
Solve the following system of equations by using the inverse of the coefficient matrix A.
(AX=B), x+5y=-10, -2x+7y=-31
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Answers (1)

sweetwisdomgw
Answered 2022-07-27 Author has 20 answers
[ 1 5 2 7 ] { x y } = { 10 31 }
A 1 = 1 ( 1 7 ) ( 5 2 ) [ 7 5 2 1 ] = 1 17 [ 7 5 2 1 ]
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