Solve the following system of equations using Cramers rule. `5x-7y+z=11 ,y x-8y-z=15a n d3x+2y-6z=7`

Explanation

`5 x-7 y+z = 11`

`6 x-8 y-z=15`

`3 x+2 y-6 z=7`



`D=|[5 , -7 , 1],[ 6 , -8 , -1 ],[ 3 , 2 , -6]|`
`=5(48+2)-7(-36+3)+1(12+24)=250-231+36=55`


`D_{1}=|[11 , -7 , 1],[ 15 , -8 , -1],[ 7 , 2 , -6]|`
`=11(48+2)+7(-90+7)+1(30+56)`
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