SOLUTION: {2x-y=5
{3x+2y=-3
Need some help with cramers rule. Really stuck
Algebra.Com
Question 611741: {2x-y=5
{3x+2y=-3
Need some help with cramers rule. Really stuck
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The value of a 2X2 determinant 
Is calculated by 
Create your coefficient determinant by setting 
and 
in the pattern above to the coefficients on the variables in your first equation and then setting 
and 
to the coefficients on the variables in the second equation. Once you have done that calculate 
, the value of the coefficient determinant.
The next step is to replace the first column in your coefficient determinant with the two constant values, 5 and -3 in your particular case. Then calculate the value of the 
determinant, 
.
Starting fresh with a new copy of the coefficient determinant, replace the SECOND column with the constant values. Then calculate the value of the 
determinant, 
Then Cramer's Rule says: 
and 
Blows up if 
, but that is not the case for your problem.
John
My calculator said it, I believe it, that settles it
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