Use matrices to solve the system

2x + 3y = 4

5x + 8y = 11

[2 3 ] [x ] = 4

[5 8 ] [ y ] = 11

get the determinate which is 8*2 -3*5 =1

1/1 [ 8 3] [ 4]

[ 5 2] [ 11]

= 8*4+3*11= 65

5*4+2*11= 42

x=65

Y= 42

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