Creamers rule to find solution of...Please help!

Use creamers rule to find the solution of the following system of equations :
7x-5y= 1
-6x-7y=1

The determinant of the coefficient matrix is :
D=
[ ? ? ]
[ ? ? ] = ?

x=
[ ? ? ]
[ ? ? ]
------------ = ?
D

y=
[ ? ? ]
[ ? ? ]
---------- = ?
D

Please find all question marks and repost in same format as above^ so I can understand your answer!

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D = -79
x = -2/-79 = 2/79
y = 13/-79 = -13/79
Cramer's Rule